ML071450133
| ML071450133 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 05/24/2007 |
| From: | Ann Marie Stone NRC/RGN-III/DRS/EB2 |
| To: | Wadley M Nuclear Management Co |
| References | |
| IR-07-004 | |
| Download: ML071450133 (8) | |
Text
May 24, 2007 Mr. Michael D. Wadley Site Vice President Prairie Island Nuclear Generating Plant Nuclear Management Company, LLC 1717 Wakonade Drive East Welch, MN 55089
SUBJECT:
PRAIRIE ISLAND NUCLEAR GENERATING PLANT NOTIFICATION OF AN NRC BIENNIAL HEAT SINK PERFORMANCE INSPECTION AND INFORMATION REQUEST
Dear Mr Wadley:
On June 25, 2007, the NRC will begin the on-site portion of the Biennial Heat Sink Performance Inspection at your Prairie Island Nuclear Generating Plant. This inspection will be performed in accordance with NRC baseline Inspection Procedure (IP) 71111.07. The heat exchangers selected for detailed review during this baseline inspection are the 121 Safeguards Control Room Chiller and the 22 Diesel Driven Cooling Water Pump Jacket Water Heat Exchanger.
In order to minimize the impact that the inspection has onsite and to ensure a productive inspection, we have enclosed a request for documents needed for the inspection. The documents have been divided into two groups. The first group lists information necessary to ensure the inspector is adequately prepared for the inspection. This information must be sent to the following e-mail address, gfo@nrc.gov, no later than June 13, 2007, to ensure that we may review these documents before the onsite inspection. A hard-copy with the required information is also an acceptable option.
The second group of documents requested are those items which the inspector will review or need access to during the onsite inspection. It is important that these documents be as complete as possible to minimize the number of documents requested during the preparation week or during the onsite inspection. The information requested should envelop the time period from the onsite inspection period back to the last Heat Sink Performance Inspection. If nothing addressing the request was done in that time period, then the request applies to the last applicable documents in the previous time period.
The lead inspector for this inspection is Gerard ODwyer. If there are questions about the material requested, or the inspection, please call Inspector Mr. ODwyer at (630) 829-9624.
M. Wadley 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), accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
/RA/
Ann Marie Stone, Chief Engineering Branch 2 Division of Reactor Safety Docket Nos. 50-282; 50-306;72-010 License Nos. DPR-42; DPR-60; SNM-2506
Enclosure:
BIENNIAL HEAT SINK INSPECTION Initial Document Request cc w/encl:
D. Cooper, Senior Vice President and Chief Nuclear Officer M. Sellman, President and Chief Executive Officer Regulatory Affairs Manager J. Rogoff, Vice President, Counsel & Secretary Nuclear Asset Manager State Liaison Officer, Minnesota Department of Health Tribal Council, Prairie Island Indian Community Administrator, Goodhue County Courthouse Commissioner, Minnesota Department of Commerce Manager, Environmental Protection Division Office of the Attorney General of Minnesota
M. Wadley 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), accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
/RA/
Ann Marie Stone, Chief Engineering Branch 2 Division of Reactor Safety Docket Nos. 50-282; 50-306;72-010 License Nos. DPR-42; DPR-60; SNM-2506
Enclosure:
BIENNIAL HEAT SINK INSPECTION Initial Document Request cc w/encl:
D. Cooper, Senior Vice President and Chief Nuclear Officer M. Sellman, President and Chief Executive Officer Regulatory Affairs Manager J. Rogoff, Vice President, Counsel & Secretary Nuclear Asset Manager State Liaison Officer, Minnesota Department of Health Tribal Council, Prairie Island Indian Community Administrator, Goodhue County Courthouse Commissioner, Minnesota Department of Commerce Manager, Environmental Protection Division Office of the Attorney General of Minnesota DOCUMENT NAME: C:\\FileNet\\ML071450133.wpd G Publicly Available G Non-Publicly Available G Sensitive G Non-Sensitive To receive a copy of this document, indicate in the concurrence box "C" = Copy without attach/encl "E" = Copy with attach/encl "N" = No copy OFFICE RIII RIII RIII RIII NAME GODwyer: ls AMStone DATE 05/23/07 05/24/07 OFFICIAL RECORD COPY
M. Wadley Letter to Mr. Michael Wadle from Ms. Ann Marie Stone dated 5/24/2007
SUBJECT:
PRAIRIE ISLAND NUCLEAR GENERATING PLANT NOTIFICATION OF AN NRC BIENNIAL HEAT SINK PERFORMANCE INSPECTION AND INFORMATION REQUEST DISTRIBUTION:
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BIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST Initial Document Request Enclosure 1
Inspection Report: 05000282/2007004; 05000306/2007004(DRS)
Inspection Dates:
June 25 - 29, 2007 Inspection Procedure:
IP 71111.07, Biennial Heat Sink Performance Inspection Lead Inspector:
Gerard ODwyer (630) 829-9624, gfo@nrc.gov I.
Information Requested Expeditiously The following information is requested to be provided as soon as possible, but no later than June 13, 2007, to support the biennial Heat Sink Performance Inspection, IP 71111.07. If some of the activities are not performed by your program, please note that fact. The information requested should envelop the time period from the onsite inspection period back to the last Heat Sink Performance Inspection. If nothing addressing the request was done in that time period then the request applies to the last applicable document in the previous time period. Unless otherwise specified, all the below requests are for the selected heat exchangers (Hxs):
the 121 Safeguards Control Room Chiller; and the 22 Diesel Driven Cooling Water Pump Jacket Water Heat Exchanger.
1.
Copies of the two most recent completed tests confirming thermal performance for those heat exchangers which are performance tested.
2.
A list of corrective action program documents (with a short description) associated with heat exchangers, heat sinks, silting, corrosion, fouling, or heat exchanger testing, that are documented in your corrective action system (for the previous 2 years or since the last biennial heat sink inspection), this request is for all the Generic Letter 89-13 Hxs and the ultimate heat sink.
3.
Copy of system description and design basis document for the heat exchangers under review (as applicable).
4.
Copy of any operability determinations or other documentation of degradation associated with the heat exchangers or the systems that support the operation of the heat exchangers.
BIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST Initial Document Request Enclosure 2
5.
Copy of any self-assessment done on any of the licensees heat exchanger programs (e.g., Generic Letter 89-13 heat exchanger program) or on the sample heat exchangers.
6.
A schedule of all inspections, cleanings, maintenance, or testing of any plant heat exchanger to be done during the on-site portion of the inspection.
7.
Listing of the GL 89-13 heat exchangers by risk significance.
8.
Maximum Cooling Water (CL) system inlet temperature limit that still allows full licensed power operation of the nuclear reactor. Please provide the document that states this limit and the operating procedure that ensures this limit is not exceeded.
II.
Information Requested to be Available on First Day of Inspection The following requests are only for the two HXs selected as samples unless otherwise stated. We request that the following information be available to the inspector upon his arrival onsite, June 25, 2007:
1.
For the two most recently completed tests confirming thermal performance of the sample heat exchangers, please provide documentation and procedures that identify the types, accuracy, and location of any special instrumentation used for these tests, (e.g., high accuracy ultrasonic flow instruments or temperature instruments). Include calibration records for the instruments used during these tests.
2.
Copy of the evaluations of data for the two most recent completed tests confirming the thermal performance of each heat exchanger.
3.
Provide 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.
4.
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).
5.
The clean and inspection maintenance schedule for each heat exchanger for the next five years.
6.
Copy of the document describing the inspection results for the last two clean and inspection activities completed on each heat exchanger.
7.
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.
BIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST Initial Document Request Enclosure 3
8.
Copy of the document establishing the repair criteria (plugging limit) for degraded tubes which are identified in each heat exchanger.
9.
Copy of the design specification and heat exchanger data sheets for each heat exchanger.
10.
Copy of the vendor manuals including component drawings for each heat exchanger.
11.
Copy of the calculations or documents which evaluate the potential for water hammer or excessive tube vibration in the heat exchanger or associated piping.
12.
Copy of heat exchanger performance trending data tracked for each heat exchanger.
13.
Copies of those documents that describe the methods taken to control water chemistry in the heat exchangers.
14.
Copies of the documents that verify the following for the ultimate heat sink:
Functionality during adverse weather conditions, e.g. high temperatures; and Last two performance test for each of the three safety-related cooling water (CL) pumps. If the components are not performance tested, please provide documentation verifying performance by the methods actually used.
15.
Copies of the documents that verify flow testing was done at maximum design flow during the last two years or since the last time it was done. Copies of the documents that verify maximum design flow testing will continue to be periodically done in the future.
16.
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.
17.
Provide a list of calculations with a description which currently apply to each HX.
18.
Provide the Design Basis Documents for the above listed Hxs.
19.
System health report(s) and maintenance rule system notebooks for these HX(s).
20.
Copies of procedures developed to implement the recommendations of GL 89-13, Service Water System Problems Affecting Safety-Related Equipment, e.g., the GL 89-13 Heat Exchanger Program description.
21.
List of engineering-related Operator Workarounds/Temporary Modifications for these HX(s) since the last Heat Sink Performance.
BIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST Initial Document Request Enclosure 4
22.
Updated Final Safety Analysis Report pages for these HX(s) and for the GL 89-13 Heat Exchanger Program.
23.
Information regarding any alarms which monitor on-line performance of these Hxs.
24.
Please provide documentation describing any events, issues or conditions involving the degradation or loss of both the normal and the ultimate heat sinks.
If the information requested above will not be available, please contact Gerard ODwyer as soon as possible at (630) 829-9624 or email gfo@nrc.gov.