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{{Adams
#REDIRECT [[IR 05000275/2013004]]
| number = ML13206A189
| issue date = 07/25/2013
| title = IR 05000275-13-004, and 05000323-13-004, Diablo Canyon Power - Notification of NRC Triennial Heat Sink Performance Inspection
| author name = Farnholtz T R
| author affiliation = NRC/RGN-IV/DRS/EB-1
| addressee name = Halpin E D
| addressee affiliation = Pacific Gas & Electric Co
| docket = 05000275, 05000323
| license number = DPR-080, DPR-082
| contact person =
| document report number = IR-13-004
| document type = Letter, Inspection Plan
| page count = 6
}}
See also: [[followed by::IR 05000275/2013004]]
 
=Text=
{{#Wiki_filter:July 25, 2013
  Mr. Edward D. Halpin
Senior Vice President and
  Chief Nuclear Officer
 
Pacific Gas and Electric Company
Diablo Canyon Power Plant
 
P.O. Box 56, Mail Code 104/6
Avila Beach, CA  93424
  SUBJECT: DIABLO CANYON POWER PLANT - NOTIFICATION OF NRC TRIENNIAL HEAT SINK PERFORMANCE INSPECTION (05000275/2013004
AND 05000323/2013004)
AND REQUEST FOR INFORMATION
Dear Mr. Halpin
 
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 your Diablo Canyon Power
Plant.  The inspection will be comprised of two reactor inspectors from the NRC Region IV office.  The inspection will be conducted in accordance with NRC Inspection Procedure
 
71111.07, "Heat Sink Performance."  The schedule for the inspection is as follows:
 
Onsite Inspection Dates:  September 9 - 12, 2013
  Experience has shown that this
inspection is resource intens
ive 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 August 26, 2013.  We request, that during the onsite inspection week, you ensure that copies of analyses, evaluations, or
documentation regarding the implementation and m
aintenance of your heat exchanger program are available.  Of specific interest are those documents that establish that your heat exchanger
program satisfies NRC regulatory requirement
s 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.
 
  UNITED STATESNUCLEAR REGULATORY COMMISSIONREGION IV1600 EAST LAMAR BLVDARLINGTON, TEXAS 76011-4511
E. Halpin  - 2 -
  We have discussed the schedule for this inspection activity with your staff and understand that our regulatory contact for this inspection will be Mike McCoy of your licensing organization.  If
there are any questions about this inspection or the material requested, please contact the
inspectors, Wayne Sifre, at 817-200-1193
or by e-mail at Wayne.Sifre@nrc.gov, or Christie Hale at 650-479-5434 or e-mail at Christie.Hale@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 Offi
ce 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 electr
onically 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 Nos.:  05000275, 05000323
License Nos.:  DPR-80; DPR-82
 
Enclosure:  Triennial Heat Sink Performance Inspection Request for Information
cc:  Electronic Distribution for Diablo Canyon Power Plant
 
 
 
 
  ML13206A189
  SUNSI Review Complete Initials:  WCS  Non-Sensitive
Sensitive  Publicly Available  Non-Publicly Available SRI:EB1 RI:EB1 C:EB1 WSifre CHale TFarnholtz /RA/ /RA/ /RA/ 7/24/13 7/25/13 7/25/13
 
  - 1 - Enclosure
Request for Information
Triennial Heat Sink Performance Inspection Diablo Canyon Power Plant
 
Inspection Report:  05000275/2013004, 05000323/2013004 
 
Inspection Dates:  September 9 - 12, 2013
 
Inspection Procedure:  IP 71111.07, Triennial "Heat Sink Performance" 
Inspectors:  Wayne Sifre, Senior Reactor Inspector
    Christie Hale, 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 August 26, 2013.  The inspector will select specific items from t
he 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:
 
* Residual Heat Removal Heat Exchangers (RHR HX 2-1, RHR HX 2-2)
* Safety Injection Pump Lube Oil and Seal Water Coolers (2-2, 2-2A/B, 2-1, 2-1A/B)
* Spent Fuel Pit Heat Exchanger (HX 2-1)
* Component Cooling Water (CCW HX 2-1, CCW HX 2-2)
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 - 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)
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 
 
  - 3 - Enclosure
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:
Wayne C. Sifre  Christie Hale
Senior Reactor Inspector  Reactor Inspector
817-200-1193    650-479-5434
Wayne.Sifre@nrc.gov  Christie.Hale@nrc.gov
 
Mailing Address:
 
U.S. NRC, Region IV Attn:  Wayne C. Sifre
1600 East Lamar Blvd.
Arlington, TX 76011-4511
}}

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