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| number = ML16085A053
| number = ML16085A053
| issue date = 03/25/2016
| issue date = 03/25/2016
| title = Wolf Creek Nuclear Operating Corp - Notification of NRC Triennial Heat Sink Performance Inspection (05000482/2016002) and Request for Information
| title = Operating Corp - Notification of NRC Triennial Heat Sink Performance Inspection (05000482/2016002) and Request for Information
| author name = Farnholtz T R
| author name = Farnholtz T
| author affiliation = NRC/RGN-IV/DRS/EB-1
| author affiliation = NRC/RGN-IV/DRS/EB-1
| addressee name = Heflin A C
| addressee name = Heflin A
| addressee affiliation = Wolf Creek Nuclear Operating Corp
| addressee affiliation = Wolf Creek Nuclear Operating Corp
| docket = 05000482
| docket = 05000482
Line 14: Line 14:
| page count = 8
| page count = 8
}}
}}
See also: [[followed by::IR 05000482/2016002]]
See also: [[see also::IR 05000482/2016002]]


=Text=
=Text=
{{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION REGION IV 1600 E. LAMAR BLVD. ARLINGTON, TX  76011-4511  March 25, 2016   
{{#Wiki_filter:UNITED STATES  
NUCLEAR REGULATORY COMMISSION  
REGION IV  
1600 E. LAMAR BLVD.  
ARLINGTON, TX  76011-4511  
   
March 25, 2016  
   
   
   
Adam C. Heflin, President and   
Adam C. Heflin, President and   
   Chief Executive Officer Wolf Creek Nuclear Operating Corporation P.O. Box 411  
   Chief Executive Officer  
Wolf Creek Nuclear Operating Corporation  
P.O. Box 411  
Burlington, KS  66839  
Burlington, KS  66839  
   
   
SUBJECT: WOLF CREEK NUCLEAR OPERATING CORPORATION - NOTIFICATION OF NRC TRIENNIAL HEAT SINK PERFORMANCE INSPECTION (05000482/2016002) AND REQUEST FOR INFORMATION   
SUBJECT:  
WOLF CREEK NUCLEAR OPERATING CORPORATION - NOTIFICATION OF  
NRC TRIENNIAL HEAT SINK PERFORMANCE INSPECTION  
(05000482/2016002) AND REQUEST FOR INFORMATION  
   
Dear Mr. Heflin:  
Dear Mr. Heflin:  
   
   
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 the Wolf Creek Nuclear Operating Corporation from May 23-27, 2016.  The inspection will consist of two reactor  
The purpose of this letter is to notify you that the U.S. Nuclear Regulatory Commission (NRC)  
inspectors from the NRC's Region IV office for one week.  The inspection will be conducted in  
staff will conduct a triennial heat sink performance inspection at the Wolf Creek Nuclear  
accordance with the NRC Inspection Procedure 71111.07, "Heat Sink Performance."
Operating Corporation from May 23-27, 2016.  The inspection will consist of two reactor  
inspectors 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.   
Experience has shown that this inspection is resource intensive both for the NRC inspectors  
Please note that the documents are requested to be provided by May 16, 2016.  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 NRC regulatory requirements and conforms to applicable NRC guidance.  Also, appropriate personnel knowledgeable of safety-related heat exchangers should be  
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 May 16, 2016.  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 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.  
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 Jason Knust of your licensing organization.  If there are any questions about this inspection or the material requested, please contact the  
We have discussed the schedule for this inspection activity with your staff and understand that  
inspectors, Wayne Sifre, by telephone at 817-200-1193 or by e-mail at Wayne.Sifre@nrc.gov, or Chad Stott, by telephone at 817-200-1526 or by e-mail at Chad.Stott@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  
our regulatory contact for this inspection will be Jason Knust of your licensing organization.  If  
there are any questions about this inspection or the material requested, please contact the  
inspectors, Wayne Sifre, by telephone at 817-200-1193 or by e-mail at Wayne.Sifre@nrc.gov, or  
Chad Stott, by telephone at 817-200-1526 or by e-mail at Chad.Stott@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  
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  
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.  
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  
A. Heflin - 2 -   In accordance with 10 CFR 2.390 of the NRC's "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 document system (ADAMS).  ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-
number.  
 
A. Heflin  
- 2 -  
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).  
rm/adams.html (the Public Electronic Reading Room).  
  Sincerely,  /RA/   
   
  Thomas R. Farnholtz, Chief Engineering Branch 1 Division of Reactor Safety   
Sincerely,  
   
/RA/  
   
   
Thomas R. Farnholtz, Chief  
Engineering Branch 1  
Division of Reactor Safety  
   
Docket:  50-482  
Docket:  50-482  
License:  NPF-42  Enclosure:  Triennial Heat Sink Performance  Inspection Request for Information   
License:  NPF-42  
Electronic Distribution for the Wolf Creek  Nuclear Operating Corporation  
   
 
Enclosure:  Triennial Heat Sink Performance   
  - 1 - Enclosure Request for Information Triennial Heat Sink Performance Inspection Wolf Creek Nuclear Operating Corporation  
Inspection Request for Information  
Inspection Report:  05000482/2016002  
   
Electronic Distribution for the Wolf Creek   
Nuclear Operating Corporation  
 
- 1 -  
Enclosure  
Request for Information  
Triennial Heat Sink Performance Inspection  
Wolf Creek Nuclear Operating Corporation  
Inspection Report:   
05000482/2016002  
Inspection Dates:
May 23 - 27, 2016
Inspection Procedure: 
IP 71111.07, Triennial Heat Sink Performance
Inspectors:
Wayne Sifre, Senior Reactor Inspector
Chad Stott, 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 Wayne Sifre, by May 16, 2016.  The
inspectors 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. Please
provide requested documentation electronically if possible.  If requested documents are large
and only hard copy formats are available, please inform the inspectors, 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 inspectors as soon as possible.   
   
   
Inspection Dates:  May 23 - 27, 2016
Inspection Procedure:  IP 71111.07, Triennial Heat Sink Performance 
Inspectors:  Wayne Sifre, Senior Reactor Inspector
    Chad Stott, 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 Wayne Sifre, by May 16, 2016.  The inspectors 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. Please provide requested documentation electronically if possible.  If requested documents are large
and only hard copy formats are available, please inform the inspectors, 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 inspectors as soon as possible.   
The following heat exchangers/heat sinks have been selected for inspection:     
The following heat exchangers/heat sinks have been selected for inspection:     
  * Component Cooling Water Heat Exchanger A   * Containment Air Cooler A     * Air Compressor and Aftercooler B     * Fuel Pool Cooling Pump Room Cooler B   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  
   
*  
Component Cooling Water Heat Exchanger A  
*  
Containment Air Cooler A  
*  
Air Compressor and Aftercooler B  
*  
Fuel Pool Cooling Pump Room Cooler B  
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   
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  
   
  - 2 -  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   
2. System health report(s) and maintenance rule system notebooks for all the Generic  
  5. Copies of any commitments to the Generic Letter 89-13 program     For the specific heat exchangers selected:  Testing Documents  6. Copies of the two most recent 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  
Letter 89-13 heat exchangers
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  
  - 3 -  16. Provide a list of calculations with a description which currently apply to each heat exchanger   17. Copies of vendor data sheets and design basis data for the selected heat exchangers   18. 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   19. 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)  20. Copy of the calculations or documents which evaluate the potential for water hammer or excessive tube vibration in the heat exchanger or associated piping   21. 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   22. 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:   23. Dam inspections that monitor the integrity of the ultimate heat sink (if applicable)  24. Copies of calculations and surveillances that determine the ultimate heat sink reservoir capacity and heat transfer capability (if applicable)  25. Copies of any design changes performed on the ultimate heat sink or safety-related service water system   26. Copies of procedures for a loss of ultimate heat sink or safety-related service water system   27. Copies of inspections and/or maintenance related to macrofouling (silt, mussel shells, debris, etc.) and aquatic life  28. Copies of inspections and/or maintenance related to preventing biotic fouling   29. 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 nonsafety-related section   30. Copy of the most recent service water flow balance test results, both as-found and as-left  31. History of any thru-wall pipe leaks on the safety-related service water system  
  - 4 -  Inspector Contact Information:  Wayne Sifre   Chad Stott Senior Reactor Inspector  Reactor Inspector  
817-200-1193   817-200-1526  
- 2 -  
Wayne.Sifre@nrc.gov   Chad.Stott@nrc.gov   Mailing Address:   
   
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  
For the specific heat exchangers selected:  
   
Testing Documents  
   
6. Copies of the two most recent 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
 
- 3 -  
   
16. Provide a list of calculations with a description which currently apply to each heat  
exchanger
17. Copies of vendor data sheets and design basis data for the selected heat exchangers
18. 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
19. 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)  
   
20. Copy of the calculations or documents which evaluate the potential for water hammer or  
excessive tube vibration in the heat exchanger or associated piping
21. 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
22. 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:  
23. Dam inspections that monitor the integrity of the ultimate heat sink (if applicable)  
   
24. Copies of calculations and surveillances that determine the ultimate heat sink reservoir  
capacity and heat transfer capability (if applicable)  
   
25. Copies of any design changes performed on the ultimate heat sink or safety-related  
service water system
26. Copies of procedures for a loss of ultimate heat sink or safety-related service water  
system
27. Copies of inspections and/or maintenance related to macrofouling (silt, mussel shells,  
debris, etc.) and aquatic life  
   
28. Copies of inspections and/or maintenance related to preventing biotic fouling
29. 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 nonsafety-related section
30. Copy of the most recent service water flow balance test results, both as-found and as-
left  
   
31. History of any thru-wall pipe leaks on the safety-related service water system
 
- 4 -  
   
Inspector Contact Information:  
   
Wayne Sifre  
Chad Stott  
Senior Reactor Inspector  
   
Reactor Inspector  
817-200-1193
817-200-1526  
Wayne.Sifre@nrc.gov
Chad.Stott@nrc.gov
Mailing Address:  
   
U.S. NRC, Region IV  
U.S. NRC, Region IV  
Attn:  Wayne Sifre 1600 East Lamar Blvd. Arlington, TX 76011-4511   
Attn:  Wayne Sifre  
A. Heflin - 2 -   In accordance with 10 CFR 2.390 of the NRC's "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 document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-
1600 East Lamar Blvd.  
rm/adams.html (the Public Electronic Reading Room).
Arlington, TX 76011-4511  
  Sincerely,  /RA/
 
Thomas R. Farnholtz, Chief Engineering Branch 1 Division of Reactor Safety  
 
Docket:  50-482
  ML16085A053
License:  NPF-42  Enclosure:  Triennial Heat Sink Performance  Inspection Request for Information 
SUNSI Review
Electronic Distribution for the Wolf Creek  Nuclear Operating Corporation Distribution See next page
By: WCS
ADAMS: 
Yes      No
Sensitive 
Non-Sensitive
Non-Publicly Available  
Publicly Available
Keyword
NRC-002
OFFICE
RI:EB1
RI:EB1
   
C:EB1
NAME
WSifre
CStott
TFarnholtz
SIGNATURE
/RA/  
/RA/  
   
/RA/  
DATE
3/24/16
3/23/16
   
3/25/16
 
   
   
   
 
   
   
   
   
Letter to Adam C. Heflin from Thomas R. Farnholtz dated March 25, 2016
   
   
 
SUBJECT:
WOLF CREEK NUCLEAR OPERATING CORPORATION - NOTIFICATION OF
NRC TRIENNIAL HEAT SINK PERFORMANCE INSPECTION
(05000482/2016002) AND REQUEST FOR INFORMATION
   
   
ADAMS ACCESSION NUMBER:  ML16085A053  SUNSI Review By:  WCS ADAMS:    Yes      No  Sensitive    Non-Sensitive  Non-Publicly Available    Publicly Available Keyword NRC-002 OFFICE RI:EB1 RI:EB1  C:EB1 NAME WSifre CStott  TFarnholtz SIGNATURE /RA/ /RA/  /RA/ DATE 3/24/16 3/23/16  3/25/16 OFFICIAL RECORD COPY 
 
    Letter to Adam C. Heflin from Thomas R. Farnholtz dated March 25, 2016  SUBJECT: WOLF CREEK NUCLEAR OPERATING CORPORATION - NOTIFICATION OF NRC TRIENNIAL HEAT SINK PERFORMANCE INSPECTION
(05000482/2016002) AND REQUEST FOR INFORMATION 
   
   
Distribution:    Regional Administrator (Marc.Dapas@nrc.gov)  
Distribution:     
Regional Administrator (Marc.Dapas@nrc.gov)  
Deputy Regional Administrator (Kriss.Kennedy@nrc.gov)  
Deputy Regional Administrator (Kriss.Kennedy@nrc.gov)  
DRP Director (Troy.Pruett@nrc.gov)  
DRP Director (Troy.Pruett@nrc.gov)  
DRP Deputy Director (Ryan.Lantz@nrc.gov)  
DRP Deputy Director (Ryan.Lantz@nrc.gov)  
DRS Director (Anton.Vegel@nrc.gov) DRS Deputy Director (Jeff.Clark@nrc.gov)  Branch Chief, DRP/B (Nick.Taylor@nrc.gov)  
DRS Director (Anton.Vegel@nrc.gov)  
DRS Deputy Director (Jeff.Clark@nrc.gov)   
Branch Chief, DRP/B (Nick.Taylor@nrc.gov)  
Senior Project Engineer, DRP/B (David.Proulx@nrc.gov)  
Senior Project Engineer, DRP/B (David.Proulx@nrc.gov)  
Project Engineer, DRP/B (Shawn.Money@nrc.gov)  
Project Engineer, DRP/B (Shawn.Money@nrc.gov)  
Project Engineer, DRP/B (Steven.Janicki@nrc.gov) Senior Resident Inspector (Douglas.Dodson@nrc.gov) Resident Inspector (Fabian.Thomas@nrc.gov)  
Project Engineer, DRP/B (Steven.Janicki@nrc.gov)  
Senior Resident Inspector (Douglas.Dodson@nrc.gov)  
Resident Inspector (Fabian.Thomas@nrc.gov)  
WC Administrative Assistant (Susan.Galemore@nrc.gov)   
WC Administrative Assistant (Susan.Galemore@nrc.gov)   
Public Affairs Officer (Victor.Dricks@nrc.gov)  
Public Affairs Officer (Victor.Dricks@nrc.gov)  
Project Manager (Fred.Lyon@nrc.gov)  
Project Manager (Fred.Lyon@nrc.gov)  
Team Leader, DRS/TSS (Thomas.Hipschman@nrc.gov) RITS Coordinator (Marisa.Herrera@nrc.gov) ACES (R4Enforcement.Resource@nrc.gov)  
Team Leader, DRS/TSS (Thomas.Hipschman@nrc.gov)  
RITS Coordinator (Marisa.Herrera@nrc.gov)  
ACES (R4Enforcement.Resource@nrc.gov)  
Regional Counsel (Karla.Fuller@nrc.gov)  
Regional Counsel (Karla.Fuller@nrc.gov)  
Technical Support Assistant (Loretta.Williams@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 (Raj.Iyengar@nrc.gov)  
Congressional Affairs Officer (Jenny.Weil@nrc.gov)  
RIV Congressional Affairs Officer (Angel.Moreno@nrc.gov)  
RIV/ETA: OEDO (Raj.Iyengar@nrc.gov)
 
 
 
}}
}}

Latest revision as of 02:15, 10 January 2025

Operating Corp - Notification of NRC Triennial Heat Sink Performance Inspection (05000482/2016002) and Request for Information
ML16085A053
Person / Time
Site: Wolf Creek 
Issue date: 03/25/2016
From: Thomas Farnholtz
Region 4 Engineering Branch 1
To: Heflin A
Wolf Creek
C. Stott
References
IR 2016002
Download: ML16085A053 (8)
v • d • e


See also: IR 05000482/2016002

Text

UNITED STATES

NUCLEAR REGULATORY COMMISSION

REGION IV

1600 E. LAMAR BLVD.

ARLINGTON, TX 76011-4511

March 25, 2016

Adam C. Heflin, President and

Chief Executive Officer

Wolf Creek Nuclear Operating Corporation

P.O. Box 411

Burlington, KS 66839

SUBJECT:

WOLF CREEK NUCLEAR OPERATING CORPORATION - NOTIFICATION OF

NRC TRIENNIAL HEAT SINK PERFORMANCE INSPECTION

(05000482/2016002) AND REQUEST FOR INFORMATION

Dear Mr. Heflin:

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 the Wolf Creek Nuclear

Operating Corporation from May 23-27, 2016. The inspection will consist of two reactor

inspectors 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 May 16, 2016. 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 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 Jason Knust of your licensing organization. If

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

inspectors, Wayne Sifre, by telephone at 817-200-1193 or by e-mail at Wayne.Sifre@nrc.gov, or

Chad Stott, by telephone at 817-200-1526 or by e-mail at Chad.Stott@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

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.

A. Heflin

- 2 -

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: 50-482

License: NPF-42

Enclosure: Triennial Heat Sink Performance

Inspection Request for Information

Electronic Distribution for the Wolf Creek

Nuclear Operating Corporation

- 1 -

Enclosure

Request for Information

Triennial Heat Sink Performance Inspection

Wolf Creek Nuclear Operating Corporation

Inspection Report: 05000482/2016002

Inspection Dates:

May 23 - 27, 2016

Inspection Procedure:

IP 71111.07, Triennial Heat Sink Performance

Inspectors:

Wayne Sifre, Senior Reactor Inspector

Chad Stott, 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 Wayne Sifre, by May 16, 2016. The

inspectors 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. Please

provide requested documentation electronically if possible. If requested documents are large

and only hard copy formats are available, please inform the inspectors, 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 inspectors as soon as possible.

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

Component Cooling Water Heat Exchanger A

Containment Air Cooler A

Air Compressor and Aftercooler B

Fuel Pool Cooling Pump Room Cooler B

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

- 2 -

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

For the specific heat exchangers selected:

Testing Documents

6. Copies of the two most recent 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

- 3 -

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

exchanger

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

18. 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

19. 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)

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

excessive tube vibration in the heat exchanger or associated piping

21. 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

22. 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:

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

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

capacity and heat transfer capability (if applicable)

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

service water system

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

system

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

debris, etc.) and aquatic life

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

29. 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 nonsafety-related section

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

left

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

- 4 -

Inspector Contact Information:

Wayne Sifre

Chad Stott

Senior Reactor Inspector

Reactor Inspector

817-200-1193

817-200-1526

Wayne.Sifre@nrc.gov

Chad.Stott@nrc.gov

Mailing Address:

U.S. NRC, Region IV

Attn: Wayne Sifre

1600 East Lamar Blvd.

Arlington, TX 76011-4511

ML16085A053

SUNSI Review

By: WCS

ADAMS:

Yes No

Sensitive

Non-Sensitive

Non-Publicly Available

Publicly Available

Keyword

NRC-002

OFFICE

RI:EB1

RI:EB1

C:EB1

NAME

WSifre

CStott

TFarnholtz

SIGNATURE

/RA/

/RA/

/RA/

DATE

3/24/16

3/23/16

3/25/16

Letter to Adam C. Heflin from Thomas R. Farnholtz dated March 25, 2016

SUBJECT:

WOLF CREEK NUCLEAR OPERATING CORPORATION - NOTIFICATION OF

NRC TRIENNIAL HEAT SINK PERFORMANCE INSPECTION

(05000482/2016002) AND REQUEST FOR INFORMATION

Distribution:

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)

Branch Chief, DRP/B (Nick.Taylor@nrc.gov)

Senior Project Engineer, DRP/B (David.Proulx@nrc.gov)

Project Engineer, DRP/B (Shawn.Money@nrc.gov)

Project Engineer, DRP/B (Steven.Janicki@nrc.gov)

Senior Resident Inspector (Douglas.Dodson@nrc.gov)

Resident Inspector (Fabian.Thomas@nrc.gov)

WC Administrative Assistant (Susan.Galemore@nrc.gov)

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

Project Manager (Fred.Lyon@nrc.gov)

Team Leader, DRS/TSS (Thomas.Hipschman@nrc.gov)

RITS Coordinator (Marisa.Herrera@nrc.gov)

ACES (R4Enforcement.Resource@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 (Raj.Iyengar@nrc.gov)

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