ML110410603

Request for Information (Inspection Report 05000482-11-003) Related to Ti 2515/177

ML110410603
Person / Time
Site:	Wolf Creek
Issue date:	02/10/2011
From:	Thomas Farnholtz Operations Branch IV
To:	Matthew Sunseri Wolf Creek
References
IR-11-003, TI 2515/177
Download: ML110410603 (7)

See also: IR 05000482/2011003

Text

February 10, 2011

Matthew W. Sunseri, President and

Chief Executive Officer Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839

SUBJECT: WOLF CREEK GENERATING STATION - REQUEST FOR INFORMATION (INSPECTION REPORT 05000482/2011003)

RELATED TO TI 2515/177

Dear Mr.Sunseri:

On May 2, 2011, the U.S. Nuclear Regulatory Commission (NRC) will begin the on-site portion of the Gas Accumulation Management in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems Temporary Instruction at your Wolf Creek Generating Station. This inspection will be performed in accordance with NRC Temporary Instruction (TI) 2515/177.

Experience has shown that this inspection is resource intensive both for 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. The documents have been divided into two groups.

• The first group lists information necessary for our initial inspection scoping and in-office preparation activities. This information should be separated by information request number,

especially if provided electronically (e.g., folder with the information request number). This information should be available to the inspector no later than March 21, 2011. Any documents mailed to the inspector should be shipped to his attention at the Region IV address. Upon review of these documents, the inspectors will select additional documentation for review upon arrival. By April 8, 2011, the inspector will communicate the

initial selected samples.

• The second group of documents requested is needed to support our onsite inspection activities. This set of documents should be available to the inspector on May 2, 2011. It is also requested that corrective action documents and responses to questions developed

during the inspection be provided to the inspector as the documents are generated.

We have discussed the schedule for these inspection activities with your staff and understand that our regulatory contact for this inspection will be Bill Muilenburg of your licensing organization. If there are any questions about this inspection or the material requested, please

contact the inspector, Greg Pick, at 817-860-8270 or by email at greg.pick@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 UNITED STATESNUCLEAR REGULATORY COMMISSIONREGION IV612 EAST LAMAR BLVD, SUITE 400ARLINGTON, TEXAS 76011-4125

Wolf Creek Nuclear Operating Corporation - 2 -

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 Code of Federal Regulations, Title 10, Part 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-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

cc w/encl:

Site Vice President Wolf Creek Nuclear Operating Corporation P.O. Box 411

Burlington, KS 66839

Jay Silberg, Esq. Pillsbury Winthrop Shaw Pittman LLP 2300 N Street, NW

Washington, DC 20037

Supervisor Licensing Wolf Creek Nuclear Operating Corporation P.O. Box 411

Burlington, KS 66839

Chief Engineer Utilities Division Kansas Corporation Commission 1500 SW Arrowhead Road Topeka, KS 66604-4027

Office of the Governor State of Kansas Topeka, KS 66612-1590

Wolf Creek Nuclear Operating Corporation - 3 -

Attorney General 120 S.W. 10th Avenue, 2nd Floor Topeka, KS 66612-1597

Chairman Coffey County Courthouse 110 South 6th Street Burlington, KS 66839

Chief, Radiation and Asbestos Control Section Bureau of Air and Radiation Kansas Department of Health and Environment 1000 SW Jackson, Suite 310 Topeka, KS 66612-1366

Chief, Technological Hazards Branch FEMA, Region VII 9221 Ward Parkway

Suite 300 Kansas City, MO 64114-3372

Wolf Creek Nuclear Operating Corporation - 4 -

Electronic distribution by RIV: Regional Administrator (Elmo.Collins@nrc.gov) Deputy Regional Administrator (Art.Howell@nrc.gov) DRP Director (Kriss.Kennedy@nrc.gov) DRP Deputy Director (Troy.Pruett@nrc.gov) DRS Director (Anton.Vegel@nrc.gov) DRS Deputy Director (Vacant) Senior Resident Inspector (Chris.Long@nrc.gov) Resident Inspector (Charles.Peabody@nrc.gov) WC Administrative Assistant (Shirley.Allen@nrc.gov) Acting Branch Chief, DRP/B (Don.Allen@nrc.gov) Senior Project Engineer, DRP/B (Rick.Deese@nrc.gov) Project Engineer, DRP/B (Greg.Tutak@nrc.gov) Project Engineer, DRP/B (Nestor.Makris@nrc.gov) Public Affairs Officer (Victor.Dricks@nrc.gov) Public Affairs Officer (Lara.Uselding@nrc.gov) Project Manager (Balwant.Singal@nrc.gov) Branch Chief, DRS/TSB (Michael.Hay@nrc.gov) RITS Coordinator (Marisa.Herrera@nrc.gov) Regional Counsel (Karla.Fuller@nrc.gov) Congressional Affairs Officer (Jenny.Weil@nrc.gov) OEMail Resource

Inspection Reports/MidCycle and EOC Letters to the following: ROPreports

Only inspection reports to the following: OEDO RIV Coordinator (James.Trapp@nrc.gov) DRS/TSB STA (Dale.Powers@nrc.gov)

R:\REACTORS\WC 2011003 RFI-TI77-GAP

ADAMS ML ADAMS: No Yes SUNSI Review Complete Reviewer Initials: TRF

Publicly Available Non-Sensitive

Non-publicly Available Sensitive DRS\EB2:SRI

EB1:C G. Pick T. Farnholtz /RA/ /RA/ 2/10/11 2/10/11 OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax

- 1 - Enclosure MANAGEMENT OF GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS TEMPORARY INSPECTION DOCUMENT REQUEST

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

format (ims.certrec.com or compact disc, preferred), in care of Greg Pick, to facilitate the selection of specific items that will be reviewed during the onsite inspection week. The inspector will select specific items from the information requested below and then request from your staff additional documents needed during the onsite inspection weeks. 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 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 inspector as soon as possible.

I. Information Requested By March 28, 2011

1. List of corrective action program documents (with a short description) associated with Generic Letter (GL) 2008-01, voids in piping, and pressure transients for the previous 3 years. 2. List of changes (with a short description and tracking number) to the final safety evaluation report (FSAR), technical specifications, technical specification bases, and technical requirement manual associated with the resolution of GL 2008-01.

3. List of calculations associated with GL 2008-01, including calculations that have been changed or created in response to GL 2008-01 (with a short description of the

calculation and the change).

4. List (with a short description) of gas intrusion mechanisms that apply to the plant and the affected system locations (e.g. identify the source, conditions, and expected void locations).

5. List of the suction piping sections identified as susceptible to gas accumulation (the list should identify the corresponding system).

6. List of the discharge piping sections identified as susceptible to gas accumulation (the list should identify the corresponding system).

7. Copies of isometric drawings of the Core Spray A and B, Residual Heat Removal A and B, and High Pressure Coolant Injection systems (hard-copies are preferred).

8. Copies of piping and instrumentation diagrams (P&IDs) of the Core Spray A and B, Residual Heat Removal A and B, and High Pressure Coolant Injection systems (hard-

copies are preferred).

9. Copies of program documents and procedures developed to implement the resolution of GL 2008-01.

- 2 - Enclosure 10. List of actions that were completed in response to GL 2008-01.

11. Copies of the modification packages for hardware modifications as part of the resolution of GL 2008-01.

12. Design basis documents of the Core Spray A and B, Residual Heat Removal A and B, and High Pressure Coolant Injection systems.

13. Design basis documents of keep-full systems of the Core Spray A and B, Residual Heat Removal A and B, and High Pressure Coolant Injection systems.

14. System walkdown reports associated with the resolution of GL 2008-01.

15. If applicable, provide a list of inaccessible locations where plant walk downs of the Core Spray A and B, Residual Heat Removal A and B, and High Pressure Coolant Injection systems have not been completed. Include an explanation of why each area is considered inaccessible.

16. Copies of surveillance procedures associated with the resolution of GL 2008-01 and the results of the last two surveillances for the Core Spray A and B, Residual Heat Removal A and B, and High Pressure Coolant Injection systems.

17. Copies of procedures used for detecting and determining void volumes.

18. Copies of procedures used for filling and venting.

19. Copies of trends of periodic venting results.

20. Copies of the engineering evaluations performed for all identified voids.

21. Basis for the void acceptance criteria (e.g. calculation). If applicable, provide the justification for any deviation from the void acceptance criteria established by the Office

of Nuclear Reactor Regulation (NRR).

22. Copy of any void transport analyses.

23. Copy of vortexing calculations associated with systems under the scope of GL 2008-01.

24. Copies of self-assessments associated with the implementation of the GL 2008-01 program. II. Information Requested By May 16, 2011

25. Copies of the selected corrective action program documents.

26. Copies of the selected licensing and design basis document changes.

27. Copies of the selected calculations.

- 3 - Enclosure 28. Copies of training documents that ensure that personnel are aware of gas-related concerns.

29. Copies of corrective action program implementing procedures.

30. Electronic copies of the current technical specifications, technical specification bases, final safety analysis report, and technical report manual.