ML12069A387

Palo Verde Nuclear Generating Station - Notification of NRC Triennial Heat Sink Performance Inspection, (05000528/2012003)

ML12069A387
Person / Time
Site:	Palo Verde
Issue date:	03/09/2012
From:	Thomas Farnholtz Region 4 Engineering Branch 1
To:	Edington R K Arizona Public Service Co
References
IR-12-003
Download: ML12069A387 (6)

See also: IR 05000528/2012003

Text

March 9, 2012

Randall K. Edington, Executive

Vice President, Nuclear/CNO

Arizona Public Service Company

P.O. Box 52034, Mail Stop 7602 Phoenix, AZ 85072-2034

SUBJECT: PALO VERDE NUCLEAR GENARATING STATION - NOTIFICATION OF NRC TRIENNIAL HEAT SINK PERFORMANCE INSPECTION (05000528/529/530/2012003)

Dear Mr. Edington:

The purpose of this letter is to notify you that U.S. Nuclear Regulatory Commission Region IV

staff will conduct a triennial heat sink performance inspection at the Palo Verde Nuclear Generating Station Units 1, 2, and 3. The inspection will be comprised of two reactor inspectors (one in training) from the NRC Region IV office. The inspection will be conducted in accordance with Inspection Procedure 71111.07, "Heat Sink Performance."

The schedule for the inspection is as follows: Onsite inspection - May 7-11, 2012

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 April 30, 2012. 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 that 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 Del Elkinton of your licensing organization. If there are any questions about this inspection or the material requested, please contact the inspector, Gerond A. George, at 817-200-1562 or by email, Gerond.George@nrc.gov.

This letter does not contain new or amended information collection requirements subject to the UNITED STATESNUCLEAR REGULATORY COMMISSIONREGION IV1600 EAST LAMAR BLVDARLINGTON, TEXAS 76011-4511

Randall K. Edington - 2 - 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 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

Dockets: 50-528; 50-529; 50-530 Licenses: NPF-41; NPF-51; NPF-74

Enclosure:

Heat Sink Performance Inspection Document Request

cc: Distribution via ListServ for Palo Verde Nuclear Generating Station

Randall K. Edington - 3 - 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 (Tom.Blount@nrc.gov ) Senior Resident Inspector (Tony.Brown@nrc.gov ) Resident Inspector (Mica.Baquera@nrc.gov ) Branch Chief, DRP/D (Ryan.Lantz@nrc.gov ) PV Administrative Assistant (Regina.McFadden@nrc.gov ) Project Engineer, DRP/D (David.You@nrc.gov ) Project Engineer, DRP/D (Brian.Parks@nrc.gov ) Public Affairs Officer (Victor.Dricks@nrc.gov) Public Affairs Officer (Lara.Uselding@nrc.gov ) Project Manager (Lauren.Gibson@nrc.gov ) Acting Branch Chief, DRS/TSB (Ryan.Alexander@nrc.gov ) RITS Coordinator (Marisa.Herrera@nrc.gov ) Regional Counsel (Karla.Fuller@nrc.gov ) Congressional Affairs Officer (Jenny.Weil@nrc.gov ) OEMail Resource

SUNSI Review Completed: ___Y___ ADAMS: Yes No Initials: _GAG_ Publicly Available Non-Publicly Available Sensitive Non-Sensitive R:\_REACTORS\PV\PV 2012003 FRI - GAG ML12069A387 SRI:EB1 C:EB1 G. George T. Farnholtz /RA/ /RA/ 3/8/12 3/9/12 OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax

- 1 - Enclosure Heat Sink Performance Inspection Document Request

Inspection Dates: May 7-11, 2012

Inspection Procedures: IP 71111.07, Triennial "Heat Sink Performance"

Inspector: Gerond A. George, Senior Reactor Inspector T. Gwynne Skaggs-Ryan, Reactor Inspector (Training) 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 (ims.certrec.com database or digital media preferred), in care of Gerond A. George, by April 30, 2012. 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 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: * Unit 1 Train A, Essential Cooling Water Heat Exchanger * Unit 1 Train A, Shutdown Cooling Heat Exchanger * Unit 2 Train B, Essential Chiller Heat Exchanger * Unit 3 Train B, Essential Cooling Water Heat Exchanger * Unit 3 Train B, Diesel Jacket Water Heat Exchanger 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 GL 89-13 heat exchangers 3. Copy of any self-assessments done on any GL 89-13 heat exchangers in the previous three years 4. Copies of procedures developed to implement the recommendations of Generic Letter 89-13, e.g., the Generic Letter 89-13 Heat Exchanger Program description 5. Copy of your response to Generic Letter 89-13

- 2 - Enclosure 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 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)

- 3 - Enclosure 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

Inspector Contact Information:

Gerond A. George

Senior Reactor Inspector

817-200-1562

Gerond.George@nrc.gov Mailing Address:

US NRC Region IV

Attn: Gerond A. George

1600 East Lamar Blvd. Arlington, TX 76011-4511