ML14364A153

Notification of NRC Triennial Heat Sink Performance IR 05000298/2015001 and Request for Information

ML14364A153
Person / Time
Site:	Cooper
Issue date:	12/30/2014
From:	Thomas Farnholtz Region 4 Engineering Branch 1
To:	Limpias O Nebraska Public Power District (NPPD)
References
IR 2015001
Download: ML14364A153 (7)

See also: IR 05000298/2015001

Text

UNITED STATES

NUCLEAR REGULATORY COMMISSION

REGION IV

1600 E LAMAR BLVD

ARLINGTON, TX 76011-4511

December 30, 2014

Mr. Oscar A. Limpias, Vice President-Nuclear

and Chief Nuclear Officer

Nebraska Public Power District

Cooper Nuclear Station

P.O. Box 98

Brownville, NE 68321-0098

SUBJECT: COOPER NUCLEAR STATION - NOTIFICATION OF NRC TRIENNIAL HEAT

SINK PERFORMANCE INSPECTION 05000298/2015001 AND REQUEST FOR

INFORMATION

Dear Mr. Limpias:

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

will conduct a triennial heat sink performance inspection at your Cooper Nuclear Station from

February 23-27, 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 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 on-site 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 February 9, 2015. We request

that during the on-site 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 NRC regulatory requirements and conforms to applicable 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 Brenda Kirkpatrick of your licensing

organization. If there are any questions about this inspection or the material requested, please

contact the inspector, Robert Latta, by telephone at 817-200-1532 or by e-mail at

Robert.Latta@nrc.gov.

O. Limpias -2-

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 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 NRC's

Agencywide Documents Access and Management 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.: 50-298

License No.: DPR-46

Enclosure:

Triennial Heat Sink Performance Inspection

Request for Information

cc: Electronic Distribution for the Cooper Nuclear Station

Request for Information

Triennial Heat Sink Performance Inspection

Cooper Nuclear Station

Inspection Report: 05000298/2015001

Inspection Dates: February 23-27, 2015

Inspection Procedure: IP 71111.07, Triennial Heat Sink Performance

Inspector: Robert Latta, Senior Reactor Inspector

Information Requested for the In-Office Preparation Week

The following information should be sent to the Region IV office in hard copy or electronic

format (Certrec IMS preferred) to the attention of Robert Latta, by February 9, 2015. The

inspector will select specific items from the information requested below and then request from

your staff additional documents needed during the on-site inspection week. We also request

that you categorize the documents in your response with the numbered list below. Please

provide requested documentation electronically if possible. Additionally, 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 on-site 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:

• Division 1 Residual Heat Removal Heat Exchanger

• Division 1 and 2 Reactor Equipment Cooling Heat Exchangers

• Diesel Generator 1, Jacket Water and Lube Oil Heat Exchangers

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

-1- Enclosure

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

-2-

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

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

Inspector Contact Information:

Robert Latta

Senior Reactor Inspector

817-200-1532

Robert.Latta@nrc.gov

Mailing Address:

U.S. NRC, Region IV

Attn: Robert Latta

1600 East Lamar Blvd.

Arlington, TX 76011-4511

-3-

ML14364A153

SUNSI Review ADAMS Publicly Available Non-Sensitive Keyword:

By: RML Yes No Non-Publicly Available Sensitive NRC-002

OFFICE RI:EB1 C:EB1

NAME RLatta/tek/dch TFarnholtz

SIGNATURE /RA/ /RA/

DATE 12/19/14 12/30/14

Letter to Oscar A. Limpias from Thomas R. Farnholtz, dated December 30, 2014

SUBJECT: COOPER NUCLEAR STATION - NOTIFICATION OF NRC TRIENNIAL HEAT

SINK PERFORMANCE INSPECTION 05000298/2015001 AND REQUEST FOR

INFORMATION

DISTRIBUTION:

Regional Administrator (Marc.Dapas@nrc.gov)

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

Acting DRP Director (Troy.Pruett@nrc.gov)

Acting DRP Deputy Director (Jason.Kozal@nrc.gov)

DRS Director (Anton.Vegel@nrc.gov)

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

Senior Resident Inspector (Jeffrey.Josey@nrc.gov)

Resident Inspector (Christopher.Henderson@nrc.gov)

Acting Branch Chief, DRP (Jeremy.Groom@nrc.gov)

Senior Project Engineer (Ray.Azua@nrc.gov)

Senior Project Engineer (Nick.Taylor@nrc.gov)

Project Engineer (Paul.Nizov@nrc.gov)

Project Engineer (Michael.Langelier@nrc.gov)

Administrative Assistant (Amy.Elam@nrc.gov)

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

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

Project Manager (John.Hughey@nrc.gov)

Branch Chief, DRS/TSB (Geoffrey.Miller@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 (Cayetano.Santos@nrc.gov)