ML21159A226

Notification of NRC Triennial Heat Exchanger/Heat Sink Performance Inspection 05000382/2021003 and Request for Information

ML21159A226
Person / Time
Site:	Waterford
Issue date:	06/08/2021
From:	David Proulx Region 4 Engineering Branch 1
To:	Ferrick J Entergy Operations
References
IR 2021003
Download: ML21159A226 (8)

See also: IR 05000382/2021003

Text

June 8, 2021

Mr. John Ferrick, Site Vice President

Entergy Operations, Inc.

17265 River Road

Killona, LA 70057

SUBJECT: WATERFORD STEAM ELECTRIC STATION, UNIT 3 - NOTIFICATION OF NRC

TRIENNIAL HEAT EXCHANGER/HEAT SINK PERFORMANCE INSPECTION

05000382/2021003 AND REQUEST FOR INFORMATION

Dear Mr. Ferrick:

The purpose of this letter is to notify you that U.S. Nuclear Regulatory Commission (NRC) staff

will conduct the triennial portion of the heat exchanger/heat sink performance inspection at

Waterford Steam Electric Station, Unit 3 from August 16 - 20, 2021. The onsite phase of the

inspection will consist of one reactor inspector from the NRCs Region IV office for one week.

The inspection will be conducted in accordance with NRC Inspection Procedure (IP) 71111,

Attachment 07, Heat Exchanger/Heat Sink Performance, dated January 1, 2021.

The objectives of the inspection are to verify that: 1) any potential heat exchanger deficiencies

which could mask degraded performance are identified, 2) any potential common-cause heat

sink performance problems that have the potential to increase risk are identified, and 3) the

licensee has adequately identified and resolved heat sink performance problems that could

result in initiating events or affect multiple heat exchangers in mitigating systems and thereby

increase risk.

To minimize the impact the inspection has on the site and to ensure an efficient inspection, we

have enclosed a request for documents needed for the inspection. It is important that these

requests are fulfilled as completely and accurately as possible to minimize any additional

requests during the preparation week or during the onsite inspection. The documents have

been divided into three groups.

• The first group lists information necessary for our initial inspection scoping activities.

This information should be available to the lead inspector no later than July 5, 2021. By

July 12, 2021, the lead inspector will communicate the initial selected set of 2-4 risk

significant or safety-related heat exchangers and/or heat sinks.

• The second group of documents requested includes those items needed to support our

in-office preparation activities. This set of documents, including the calculations

associated with the selected heat exchangers and/or heat sinks, should be available no

later than August 2, 2021. This information should be separated for each selected

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component, especially if provided electronically. Note that the inspector(s) may identify

additional information needed to support the inspection during this week and will

communicate those requests as soon as practicable.

• The third group of documents requested includes the additional documentation identified

during in-office preparation activities as well as other resource requests necessary to

support our onsite inspection activities. The additional information or resources should

be available throughout the week of onsite inspection activities beginning on August 16,

2021.

All requested documents are to be for the time period from the onsite inspection period back to

the last triennial heat exchanger/heat sink performance inspection. If nothing addressing a

request was done in that time period, then the request applies to the last applicable document.

If a request does not apply for any heat exchanger/heat sink sample, no response is necessary.

Include all attachments to the requests, especially corrective action program documents.

We have discussed the schedule for this inspection with your staff and understand that our

regulatory contact for this inspection will be Mr. Remy Devoe of your Licensing Organization. If

there are any questions about this inspection or the documents requested, please contact the

lead inspector, Wayne Sifre, by telephone at 817-200-1193 or by e-mail at

Wayne.Sifre@nrc.gov.

PAPERWORK REDUCTION ACT STATEMENT

This letter contains mandatory information collections that are subject to the Paperwork

Reduction Act of 1995 (44 U.S.C. 3501 et seq.). The Office of Management and Budget (OMB)

approved these information collections (approval number 3150-0011). Send comments

regarding this information collection to the Information Services Branch, Office of the Chief

Information Officer, Mail Stop: T6 A10M, U.S. Nuclear Regulatory Commission, Washington,

DC 20555-0001, or by e-mail to Infocollects.Resource@nrc.gov, and to the Desk Officer, Office

of Information and Regulatory Affairs, NEOB-10202, (3150-0011) Office of Management and

Budget, Washington, DC 20503.

PUBLIC PROTECTION NOTIFICATION

The NRC may not conduct nor sponsor, and a person is not required to respond to, a request

for information or an information collection requirement unless the requesting document

displays a currently valid OMB control number.

In accordance with Title 10 of the Code of Federal Regulations (10 CFR) 2.390 of the NRCs

Rules of Practice, a copy of this letter and its enclosure will be available electronically for

public inspection in the NRC Public Document Room or from the Publicly Available

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Records (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from

the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading

Room).

Sincerely,

David L. Digitally signed by

David L. Proulx

Proulx Date: 2021.06.08

16:09:11 -05'00'

David Proulx, Acting Chief

Engineering Branch 1

Division of Reactor Safety

Docket No. 50-382

License No. NPF-38

Enclosure:

Triennial Heat Exchanger/Heat Sink

Performance Inspection Request

for Information

cc w/ encl: Distribution via LISTSERV

ML21159A226

SUNSI Review ADAMS: Non-Publicly Available Non-Sensitive Keyword:

By: WCS Yes No Publicly Available Sensitive NRC-002

OFFICE SRI:EB1 C:PBD AC:EB1

NAME WSifre JDixon DProulx

SIGNATURE WCS JLD DLP

DATE 06/08/2021 06/08/2021 06/08/2021

Request for Information

Triennial Heat Exchanger/Heat Sink Performance Inspection

Waterford Steam Electric Station, Unit 3

Inspection Report: 05000382/2021003

Inspection Dates: August 16 - 20, 2021

Inspection Procedure: IP 71111.07, Triennial Heat Exchanger/Heat Sink Performance

Inspector: Wayne C. Sifre, Senior Reactor Inspector

I. Information Requested by July 5, 2021:

1. Heat exchanger/heat sink program documents, including Generic Letter (GL) 89-13 or

aging management programs

2. Responses to GL 89-13

3. Different requirements and/or commitments related to GL 89-13 or aging management

programs

4. Heat exchanger/heat sink program self-assessments

5. Updated final safety analysis report (UFSAR), technical specifications (TSs), and TS

bases

6. List of heat exchangers in order of risk significance

7. List of corrective action program documents related to heat exchangers/heat sinks

II. Information Requested by August 2, 2021:

1. For the selected heat exchangers that are directly cooled by the service water system:

a. Performance testing (or equivalent method) documentation, including procedure

b. Periodic flow testing and/or balancing documentation, including procedure

c. Inspection (visual, eddy-current, etc.) and cleaning documentation, including

procedure

d. Tube plugging map

e. Biotic fouling and macrofouling treatment documentation, including procedure

f. Relevant design basis calculation

Enclosure

g. Applicable system health report and design basis document

h. Relevant system piping and instrumentation diagrams

i. Heat exchanger design specification and heat exchanger data sheet

j. Heat exchanger preventive maintenance schedule

2. For the selected heat exchangers that are directly cooled by a closed loop cooling water

system:

a. Periodic flow testing and/or balancing documentation, including procedure

b. Inspection (visual, eddy-current, etc.) and cleaning documentation, including

procedure

c. Tube plugging map

d. Evaluation of potential for water hammer

e. Chemical treatment documentation, including procedure

f. Relevant design basis calculations

g. Applicable system health report and design basis document

h. Relevant system piping and instrumentation diagrams

i. Heat exchanger design specification and heat exchanger data sheet

j. Heat exchanger preventive maintenance schedule

3. For the selected ultimate heat sink (UHS):

a. Forced draft cooling tower or spray pond UHS:

i. Calculations demonstrating sufficient reservoir capacity

ii. Documentation of periodic monitoring and trending of sediment, including

procedures

iii. Performance monitoring documentation of heat transfer capability,

including procedures

iv. Performance monitoring documentation of UHS structural integrity,

including procedures

b. Operation of the service water system (SWS) and UHS:

i. List of modifications to the SWS and UHS

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ii. Procedures for a loss of SWS or UHS

iii. Biotic fouling and macrofouling treatment documentation, including

procedures

iv. Chemistry monitoring documentation, including procedures

v. Evaluation of strong-pump to weak-pump interactions

c. Performance testing of the SWS and UHS:

i. Inservice testing documentation of SWS/UHS pumps, valves, and fans,

including procedures

ii. Service water flow balance test documentation, including procedures

iii. Diagnostic testing documentation for valves that interface with safety-

related service water and nonsafety-related or nonseismic piping systems

iv. Performance testing documentation of risk-significant nonsafety-related

functions (or alignments), including procedures

d. Component cooling water system:

i. Inaccessible pipe testing, inspection (visual, ultrasonic, etc.), and/or

monitoring documentation, including procedure

ii. Evaluations of active thru wall pipe leaks

iii. Corrective action documents related to thru wall pipe leakage, including

trend evaluations

iv. For closed cooling water systems, trend data on make-up to the system

v. Protective coatings inspection documentation, including procedure

vi. For deep draft vertical pumps, diagnostic testing (or equivalent method)

documentation, including procedures

e. Service water intake structure (SWIS):

i. Preventive maintenance schedule for traveling screens and strainers

ii. Corrective action documents related to traveling screens, strainers, trash

racks, etc.

iii. SWS/UHS normal and abnormal operating procedures

iv. SWIS inspection documentation regarding structural integrity and silting,

including procedure

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v. Service water pump bay water level instrument documentation related to

setpoints and calibration, including procedures

vi. SWS/UHS water temperature instrumentation documentation related to

setpoints and calibration, including procedures

vii. Evaluations of potential for frazil ice formation

viii. For underwater weir walls, evaluations of potential silt introduction

III. Additional Requests During Onsite Inspection Activities

1. Supplemental requests identified during in-office preparation activities

2. Additional requests identified during onsite inspection activities

3. Discussions with relevant subject matter experts

4. Walkdowns of selected heat exchanger/heat sink samples

5. Corrective action program documents generated as a result of this inspection

If the information requested above will not be available, please contact Wayne Sifre as soon as

possible.

Inspector Contact Information:

Wayne C. Sifre

Senior Reactor Inspector

817-200-1193

Wayne.Sifre@nrc.gov

Mailing Address:

U.S. NRC, Region IV

Attn: Wayne Sifre

1600 East Lamar Blvd.

Arlington, TX 76011-4511

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