05000382/FIN-2012005-03

Finding

Title

Reactor Auxiliary Building Roof Flood Protection Issue

Description

The inspectors identified an unresolved item (URI) related to a probable maximum precipitation (PMP) flooding event that could potentially affect safety-related equipment located on the roof of the reactor auxiliary building. During a walk-down of the reactor auxiliary building roof, the inspectors identified safety-related components, electrical conduit, and power cables that are vulnerable to a PMP flooding event. The inspectors questioned whether the licensee had performed an analysis to demonstrate that the safety-related components and electrical equipment related to conduits and power cables were adequately protected from a design basis PMP. At that time, the licensee could not identify an analysis that addressed the roof drains and scupper capacities of the area or if the safety-related equipment identified on the roof would function during and after a PMP event. The licensee entered this issue of concern into their corrective action program as CR-WF3- 2012-7520. The inspectors opened this unresolved item to determine if there is a performance deficiency associated with design control since the licensee did not have an analysis demonstrating adequate flooding protection. This item is unresolved pending a review of a flooding design analysis and other related documentation: URI 05000382/2012005-03: Reactor auxiliary building roof flood protection issue.

03
Site:	Waterford
Report	IR 05000382/2012005 Section 4OA5
Date counted	Dec 31, 2012 (2012Q4)
Type:	URI:
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:
Inspectors (proximate)	M Davis G George D Allen R Azua M Baquera N Okonkwo M Williams D Bradleyd Allenw Sifre D Overland C Steely C Speer D Bradley T Skaggs-Ryan L Ricketson P Elkmann M Davis
INPO aspect
'
v • d • e

Finding - Waterford - IR 05000382/2012005

1(0)2(2)3(3)4(4)5(5)6(0)7(2)8(6)9(0)10(0)11(0)201(0)202(1)301(0)403(4)404(2)405(0)503(0)801(0)1(0)15(0)

IR 05000382/2012005: 1 2 3 4 5

Finding List (Waterford) @ 2012Q4

CCA Matrix: 2012Q4

	Q	CCA	Title
05000382/FIN-2012002-02	2012Q1	H.7	Failure to Identify and Perform Testing to Demonstrate Performance of SAFETY-RELATED Valves
05000382/FIN-2012007-02	2012Q1		Failue to Calculate Adequate Cooling Provided to Diesel Generator B within Required Time
05000382/FIN-2012007-01	2012Q1		Failure to Adequately Evaluate the Impact of Fire Damage on the Dry Cooling Tower Fans
05000382/FIN-2012002-01	2012Q1		Failure to Develop Preventive Maintenance Tasks for Critical Limit Switches on Component Cooling Water Inlet Isolation Valves
05000382/FIN-2012003-02	2012Q2	H.14	Failure to Provide Adequate Design Control Measures for Verifying or Checking the Adequacy of the Ultimate Heat Sink Thermal Performance Analysis
05000382/FIN-2012202-01	2012Q2	P.1	Security
05000382/FIN-2012003-01	2012Q2	H.7	Failure to Establish Adequate Procedural Guidance to Control Feedwater Heater Level Control Valves
05000382/FIN-2012004-01	2012Q3	P.5	Failure to Establish Procedural Controls to Ensure That Licensed Operators Could Perform Immediate and Time Critical Operator Actions Associated with Security and Fire Events
05000382/FIN-2012403-04	2012Q3	H.9	Security
05000382/FIN-2012403-03	2012Q3	H.10	Security
05000382/FIN-2012403-02	2012Q3	H.14	Security
05000382/FIN-2012403-01	2012Q3		Security
05000382/FIN-2012008-05	2012Q3	H.8	Failure to Develop Effective Corrective Actions to Preclude Repetition
05000382/FIN-2012008-04	2012Q3	H.8	Failue to Ensure Operator Knowledge of Equipment Status
05000382/FIN-2012008-03	2012Q3	H.6	Failure to Take Timely Corrective Action to Establish a Basis for Flood Control Measures
05000382/FIN-2012008-02	2012Q3	H.6	Failure to Take Corrective Action Associated with Emergency Feedwater Pump AB
05000382/FIN-2012008-01	2012Q3	P.5	Failure to Promptly Determine the Operability of the Emergency Diesel Generators
05000382/FIN-2012004-04	2012Q3	H.13	Failure to Adequately Access and Manage Risk Before Performing Maintenance Activities Associated with NON-STANDARD Lifts
05000382/FIN-2012004-03	2012Q3	P.2	Failure to Identify and Correct a Torn Diaphragm of a SAFETY-RELATED Air Operated Valve Associated with the Emergency Feedwater System
05000382/FIN-2012004-02	2012Q3	P.2	Failure to Identify and Correct Degraded Conditions Associated with the Auxiliary Component Cooling Water Heat Exchanger Outlet Temperature Control Valve
05000382/FIN-2012005-02	2012Q4	P.2	Failure to Promptly Identify and Correct the Cause of Repetitive Failures Associated with Train a Component Cooling Water Radiation Monitor
05000382/FIN-2012005-01	2012Q4	H.5	Failure to Implement Control Measures to Ensure That Activated Materials Were Not Raised Above or Brought Near the Surface of the Refueling Pool, Causing a Locked High Radiation Area
05000382/FIN-2012005-03	2012Q4		Reactor Auxiliary Building Roof Flood Protection Issue

Self-Identified List (Waterford)

	Q	Title
05000382/FIN-2012003-03	2012Q2	Licensee-Identified Violation
05000382/FIN-2012008-06	2012Q3	Licensee-Identified Violation
05000382/FIN-2012005-04	2012Q4	Licensee-Identified Violation
05000382/FIN-2012005-05	2012Q4	Licensee-Identified Violation

[Waterford Findings full list]

05000382/FIN-2012005-03

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