05000382/FIN-2018002-01

Finding

Title

Failure to Ensure Appropriate Chemistry Controls on the Component Cooling Water Heat Exchangers

Description

The inspectors reviewed a self-revealed, Green non-cited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, which occurred because the licensee did not prescribe procedures for preventing fouling of the component cooling water heat exchangers that were appropriate to the circumstances. Specifically, the licensee did not require in its instructions for adding biocide to the auxiliary component cooling water system that additions be coupled with running the associated auxiliary component cooling water pump or other means of ensuring that the biocide would be sufficiently circulated through the system. As a result, on February 8, 2018, component cooling water heat exchanger B failed a performance test and therefore would not maintain required design basis temperatures under all accident conditions due to biological fouling.

01
Site:	Waterford
Report	IR 05000382/2018002 Section 1R07
Date counted	Jun 30, 2018 (2018Q2)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	Self-revealing
Inspection Procedure:	IP 71111.07
Inspectors (proximate)	F Ramirez C Speer C Henderson W Sifre C Smith E Uribe G Miller
Violation of:	10 CFR 50 Appendix B 10 CFR 50 Appendix B Criterion V
CCA	H.12, Avoid Complacency
INPO aspect	QA.4
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v • d • e

Finding - Waterford - IR 05000382/2018002

1(1)2(3)3(0)4(0)5(0)6(0)7(0)8(0)10(0)201(0)301(0)403(0)404(1)405(0)410(0)

IR 05000382/2018002: 1 2 3

Finding List (Waterford) @ 2018Q2

CCA Matrix: 2018Q2

	Q	CCA	Title
05000382/FIN-2017010-01	2017Q3		Failure to Evaluate Departures from Approved Methodologies for Reactor Vessel Fluence
05000382/FIN-2017008-01	2017Q4		Three examples of Failure to Establish and Maintain Preventive Maintenance Procedures for Safety-Related Electrical Equipment
05000382/FIN-2017008-02	2017Q4	H.11	Failure to Meet RG 1.9 Emergency Diesel Testing Requirements during Surveillance Test Results in Missed Surveillance
05000382/FIN-2017008-03	2017Q4		Two Examples of Failure to Submit and Receive Prior Authorization of Alternatives to ASME OM Code Leak Testing Requirements
05000382/FIN-2017008-04	2017Q4		Potential Failure to Obtain a License Amendment for Changes to Diesel Generator Surveillance Test Interval
05000382/FIN-2017403-01	2017Q4	P.6	Security
05000382/FIN-2018001-01	2018Q1		Failure to Obtain NRC Staff Authorization Prior to Changing a Procedure that Impacts Implementation of Technical Specifications
05000382/FIN-2018002-01	2018Q2	H.12	Failure to Ensure Appropriate Chemistry Controls on the Component Cooling Water Heat Exchangers
05000382/FIN-2018002-02	2018Q2		10 CFR 50.59 Evaluation Associated with Emergency Feedwater Logic Modification
05000382/FIN-2018404-01	2018Q2	P.1	Security

Self-Identified List (Waterford)

	Q	Title
05000382/FIN-2017403-02	2017Q4	Licensee-Identified Violation
05000382/FIN-2018002-03	2018Q2	Licensee-Identified Violation

[Waterford Findings full list]

05000382/FIN-2018002-01

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