ML15187A216

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Notification of NRC Triennial Heat Sink Performance Inspection 05000313/2015003 and 05000368/2015003 and Request for Information
ML15187A216
Person / Time
Site: Arkansas Nuclear  
Issue date: 07/06/2015
From: Thomas Farnholtz
Region 4 Engineering Branch 1
To: Jeremy G. Browning
Entergy Operations
Farnholtz T
References
IR 2015003
Download: ML15187A216 (7)


See also: IR 05000313/2015003

Text

UNITED STATES

NUCLEAR REGULATORY COMMISSION

REGION IV

1600 E. LAMAR BLVD.

ARLINGTON, TX 76011-4511

July 6, 2015

Mr. Jeremy Browning, Site Vice President

Arkansas Nuclear One

Entergy Operations, Inc.

1448 SR 333

Russellville, AR 72802-0967

SUBJECT:

ARKANSAS NUCLEAR ONE - NOTIFICATION OF NRC TRIENNIAL HEAT

SINK PERFORMANCE INSPECTION 05000313/2015003 AND

05000368/2015003 AND REQUEST FOR INFORMATION

Dear Mr. Browning:

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

staff will conduct a triennial heat sink performance inspection at Arkansas Nuclear One from

July 13-17, 2015. 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 the NRC Inspection

Procedure 71111.07, Heat Sink Performance.

Experience has shown that this inspection is resource intensive, both for the NRC inspectors

and your staff. In order to minimize the impact to your onsite resources and to ensure a

productive inspection, we have enclosed a request for documents needed for this inspection.

Please note that the documents are requested to be provided by July 13, 2015. We request

that during the onsite inspection week you ensure that copies of analyses, evaluations, or

documentation regarding the implementation and maintenance of your heat exchanger program

are available. Of specific interest are those documents that establish your heat exchanger

program satisfies the NRC regulatory requirements and conforms to applicable the NRC

guidance. Also, appropriate personnel knowledgeable of safety-related heat exchangers should

be available to support the inspector at the site during the inspection.

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

our regulatory contact for this inspection will be Natalie Mosher of your licensing organization. If

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

inspector, Megan Williams, by telephone at 817-200-1076 or by e-mail at

megan.williams@nrc.gov.

This letter does not contain new or amended information collection requirements subject to the

Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information collection

requirements were approved by the Office of Management and Budget, Control

Number 3150 0011. The NRC may not conduct or sponsor, and a person is not required to

J. Browning

- 2 -

respond to, a request for information or an information collection requirement unless the

requesting document displays a currently valid Office of Management and Budget control

number.

In accordance with 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 Records (PARS) component of NRCs 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,

/RA/

Thomas R. Farnholtz, Chief

Engineering Branch 1

Division of Reactor Safety

Docket No.: 50-313, 50-368

License No.: DRP-51; NPF-6

Enclosure:

Triennial Heat Sink Performance Inspection

Request for Information

Electronic Distribution for Arkansas Nuclear One

- 1 -

Enclosure

Request for Information

Triennial Heat Sink Performance Inspection

Arkansas Nuclear One

Inspection Report: 05000313/2015003 and 05000368/2015003

Inspection Dates:

July 13-17, 2015

Inspection Procedure:

IP 71111.07, Triennial Heat Sink Performance

Inspector:

Megan Williams, Reactor Inspector

Information Requested for the In-Office Preparation Week

The following information should be sent to the Region IV office via electronic format (Certrec

IMS preferred), to the attention of Megan Williams, by July 13, 2015. The inspector will select

specific items from the information requested below and then request from your staff additional

documents needed during the onsite inspection week. Also, we request that you categorize the

documents in your response with the numbered list below, and for Adobe portable document

files (.pdf) please make the text searchable. If requested documents are large and only hard

copy formats are available, please inform the inspector and provide subject documentation

during the first day of the onsite inspection. If you have any questions regarding this information

request, please call the lead inspector as soon as possible.

The following heat exchangers/heat sinks have been selected for inspection:

Alternate A/C diesel generator with air-cooled jacket water system and heat exchanger

Auxiliary feedwater pump with air-cooled oil cooler

Seal coolers for high pressure injection recirculating flow

For all Generic Letter 89-13 exchangers:

1.

List of corrective action program documents (with a short description) associated with

Generic Letter 89-13 heat exchangers, heat sinks, silting, corrosion, fouling, heat

exchanger cavitation, or heat exchanger testing, in the previous three years

2.

System health report(s) and maintenance rule system notebooks for all the Generic

Letter 89-13 heat exchangers

3.

Copy of any self-assessments done on any Generic Letter 89-13 heat exchangers in the

previous three years

4.

Copies of any procedures developed to implement the recommendations of Generic

Letter 89-13 (e.g., the Generic Letter 89-13 Heat Exchanger Program description)

5.

Copies of any commitments to the Generic Letter 89-13 program

- 2 -

For the specific heat exchangers selected:

Testing Documents

6.

Copies of the two most recently completed tests confirming thermal performance for

those heat exchangers which are performance-tested

7.

Instrument uncertainties of the instruments used during testing

8.

Copy of any operability determinations or other documentation of degradation

associated with the heat exchangers or the systems that support the operation for the

selected heat exchangers

9.

Documents that show the as-found results are recorded, evaluated, and appropriately

dispositioned such that the as-left condition is acceptable

Cleaning Documents

10. The cleaning and inspection maintenance schedule for each heat exchanger for the next

five years

11. Copy of the document describing the inspection results for the last two cleaning and

inspection activities completed on each heat exchanger

12. Cleaning procedures with acceptance criteria for the selected heat exchangers

13. Copies of the documents that verify the structural integrity of the heat exchanger (e.g.,

eddy current summary sheets, ultrasonic testing results, and visual inspection results)

14. Copies of those documents that describe the methods taken to control water chemistry

in the heat exchangers

Design Documents

15. Copies of the design basis documents and updated final safety analysis report pages for

the selected heat exchangers

16. Copies of the system training manuals for the selected heat exchangers

17. Provide a list of calculations with a description which currently apply to each heat

exchanger

18. Copies of vendor data sheets and design basis data for the selected heat exchangers

19. Copy of the calculation which establishes the limiting (maximum) design basis heat load

which is required to be removed by each of these heat exchangers

- 3 -

20. Copy of the calculation which correlates surveillance testing results from these heat

exchangers with design basis heat removal capability (e.g., basis for surveillance test

acceptance criteria)

21. Copy of the calculations or documents which evaluate the potential for water hammer or

excessive tube vibration in the heat exchanger or associated piping

22. Copy of the document which identifies the current number of tubes in service for each

heat exchanger and the supporting calculation which establishes the maximum number

of tubes which can be plugged in each heat exchanger

23. Copy of the document establishing the repair criteria (plugging limit) for degraded tubes

which are identified in each heat exchanger

For the ultimate heat sink or safety-related service water system:

24. Dam inspections that monitor the integrity of the ultimate heat sink (if applicable)

25. Copies of calculations and surveillances that determine the ultimate heat sink reservoir

capacity and heat transfer capability (if applicable)

26. Copies of any design changes performed on the ultimate heat sink or safety-related

service water system

27. Copies of procedures for a loss of ultimate heat sink or safety-related service water

system

28. Copies of inspections and/or maintenance related to macrofouling (silt, mussel shells,

debris, etc.) and aquatic life

29. Copies of inspections and/or maintenance related to preventing biotic fouling

30. Copies of procedures and/or test results to survey or monitor interface valves between

the safety-related section of the service water system and the non-safety-related section

31. Copy of the most recent service water flow balance test results, both as-found and

as-left

32. History of any thru-wall pipe leaks on the safety-related service water system

Inspector Contact Information:

Mailing Address:

Megan Williams

Reactor Inspector

817-200-1076

megan.williams@nrc.gov

U.S. NRC, Region IV

Attn: Megan Williams

1600 East Lamar Blvd.

Arlington, TX 76011-4511

ML15187A216

SUNSI Review

By: TRF

ADAMS

Yes No

Publicly Available

Non-Publicly Available

Non-Sensitive

Sensitive

Keyword:

NRC-002

OFFICE

RI:EB1

C:PBE

C:EB1

NAME

MJWilliams:TEK

NOKeefe

TFarnholtz

SIGNATURE

/RA/

/RA/

/RA/

DATE

07/06/15

07/06/15

07/06/15

Letter to Jeremy Browning from Thomas Farnholtz, dated July 6, 2015

SUBJECT:

ARKANSAS NUCLEAR ONE - NOTIFICATION OF NRC TRIENNIAL HEAT

SINK PERFORMANCE INSPECTION 05000313/2015003 AND

05000368/2015003 AND REQUEST FOR INFORMATION

Distribution by RIV:

Regional Administrator (Marc.Dapas@nrc.gov)

Deputy Regional Administrator (Kriss.Kennedy@nrc.gov)

DRP Director (Troy.Pruett@nrc.gov)

DRP Deputy Director (Ryan.Lantz@nrc.gov)

DRS Director (Anton.Vegel@nrc.gov)

DRS Deputy Director (Jeff.Clark@nrc.gov)

Senior Resident Inspector (Brian.Tindell@nrc.gov)

Resident Inspector (Matt.Young@nrc.gov)

Resident Inspector (Margaret.Tobin@nrc.gov)

Branch Chief, DRP/E (Neil.OKeefe@nrc.gov)

Senior Project Engineer, DRP/E (Nick.Taylor@nrc.gov)

Project Engineer, DRP/E (Thomas.Farina@nrc.gov)

Project Engineer, DRP/E (Brian.Correll@nrc.gov)

Project Engineer, DRP/E (Jackson.Choate@nrc.gov)

ANO Administrative Assistant (Gloria.Hatfield@nrc.gov)

Public Affairs Officer (Victor.Dricks@nrc.gov)

Public Affairs Officer (Lara.Uselding@nrc.gov)

Project Manager (Andrea.George@nrc.gov)

Team Leader, DRS/TSS (Don.Allen@nrc.gov)

ACES (R4Enforcement.Resource@nrc.gov)

RITS Coordinator (Marisa.Herrera@nrc.gov)

Regional Counsel (Karla.Fuller@nrc.gov)

Technical Support Assistant (Loretta.Williams@nrc.gov)

Congressional Affairs Officer (Jenny.Weil@nrc.gov)

RIV Congressional Affairs Officer (Angel.Moreno@nrc.gov)

RIV/ETA: OEDO (Michael.Waters@nrc.gov)