ML041880261
| ML041880261 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 07/06/2004 |
| From: | Anton Vegel Division of Reactor Safety III |
| To: | Thomas J. Palmisano Nuclear Management Co |
| References | |
| Download: ML041880261 (5) | |
Text
July 6, 2004 Mr. T. Palmisano Site Vice President Monticello Nuclear Generating Plant Nuclear Management Company, LLC 2807 West County Road 75 Monticello, MN 55362-9637
SUBJECT:
MONTICELLO NUCLEAR GENERATING PLANT ANNOUNCEMENT OF BASELINE INSPECTION
Dear Mr. Palmisano:
On December 6, 2004, the U.S. Nuclear Regulatory Commission (NRC) will begin the required biennial inspection of heat sink performance at your Monticello Nuclear Generating Plant. This inspection will be performed in accordance with the NRC baseline inspection procedure 71111.07B.
In order to minimize the impact that the inspection has on the site and to ensure a productive inspection for both sides, 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 in order to ensure the inspector is adequately prepared for the inspection. This information should be available to the Regional Office by no later than November 29, 2004. In so far as possible, this information should be provided electronically to the lead inspector. We appreciate the information already supplied by your staff which has allowed us to select the heat exchangers to be reviewed during the inspection.
The second group of documents requested are those items which the inspector will review or need access to during the inspection. It is important that these documents be as complete as possible, in order to minimize the number of documents requested during the actual inspection.
The lead inspector for this inspection is Ms. Patricia Lougheed. If there are any questions about the material requested, or the inspection, please call the lead inspector at 630-829-9760 or e-mail her at vpl@nrc.gov.
T. Palmisano 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/
Anton Vegel, Chief Systems Engineering Branch Division of Reactor Safety Docket No. 50-263 License No. DPR-22
Enclosure:
List of Information Requested for Heat Sink Inspection cc w/encl:
J. Cowan, Executive Vice President and Chief Nuclear Officer Manager, Regulatory Affairs J. Rogoff, Vice President, Counsel, and Secretary Nuclear Asset Manager, Xcel Energy, Inc.
Commissioner, Minnesota Department of Health R. Nelson, President Minnesota Environmental Control Citizens Association (MECCA)
Commissioner, Minnesota Pollution Control Agency D. Gruber, Auditor/Treasurer, Wright County Government Center Commissioner, Minnesota Department of Commerce Manager - Environmental Protection Division Minnesota Attorney Generals Office
T. Palmisano 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/
Anton Vegel, Chief Systems Engineering Branch Division of Reactor Safety Docket No. 50-263 License No. DPR-22
Enclosure:
List of Information Requested for Heat Sink Inspection cc w/encl:
J. Cowan, Executive Vice President and Chief Nuclear Officer Manager, Regulatory Affairs J. Rogoff, Vice President, Counsel, and Secretary Nuclear Asset Manager, Xcel Energy, Inc.
Commissioner, Minnesota Department of Health R. Nelson, President Minnesota Environmental Control Citizens Association (MECCA)
Commissioner, Minnesota Pollution Control Agency D. Gruber, Auditor/Treasurer, Wright County Government Center Commissioner, Minnesota Department of Commerce Manager - Environmental Protection Division Minnesota Attorney Generals Office ADAMS Distribution:
WDR DFT LMP RidsNrrDipmIipb GEG HBC SXB3 DRPIII DRSIII PLB1 JRK1 DOCUMENT NAME: ML041880261.wpd To receive a copy of this document, indicate in the box: "C" = Copy without attachment/enclosure "E" = Copy with attachment/enclosure "N" = No copy OFFICE RIII RIII RIII NAME PLougheed:tr BBurgess AVegel DATE 07/06/04 07/06/04 07/06/04 OFFICIAL RECORD COPY
LIST OF INFORMATION REQUESTED FOR HEAT SINK INSPECTION Enclosure 1
Please provide the following information by November 29, 2004, to support the biennial "Heat Exchanger Performance," inspection procedure 71111.07.
1.
Copies of the procedures used to monitor or inspect heat exchanger performance.
2.
Copies of procedures developed to implement the recommendations of Generic Letter (GL) 89-13, "Service Water System Problems Affecting Safety-Related Equipment."
3.
A list of issues, 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. This list should be sorted in order of significance.
4.
A system health report or other information showing the maintenance rule categorization of the safety-related service water system.
5.
A piping and instrumentation diagram (or other similar flow diagram) showing the layout and components serviced by the safety-related service water system.
Please provide the following at the start of the on-site inspection on December 6, 2004:
1.
Copy of the evaluations of data for the two most recent completed tests or as-found inspection results confirming the thermal performance for the ECCS and RHR pump room coolers.
2.
Copy of the calculation which establishes the limiting (maximum) design basis heat load which is required to be removed by the ECCS and RHR pump room coolers.
3.
Copy of the calculation which provides the basis for the surveillance test acceptance criteria for the ECCS and RHR pump room coolers.
4.
The clean and inspection maintenance schedule for each heat exchanger for the ECCS and RHR pump room coolers, including justifications for the schedule if it has been increased since the GL 89-13 program was implemented.
5.
Copy of the inspection results and actions taken for the last two clean and inspect maintenance activities completed for the ECCS and RHR pump room coolers.
6.
Copy of the document which identifies the current number of tubes in service for the ECCS and RHR pump room coolers and the supporting calculation which establishes the maximum number of tubes which can be plugged in each heat exchanger.
7.
Copy of the document establishing the repair criteria (plugging limit) for degraded tubes which are identified in each heat exchanger.
8.
Copy of the design specification and heat exchanger data sheets for the ECCS and RHR pump room coolers.
LIST OF INFORMATION REQUESTED FOR HEAT SINK INSPECTION Enclosure 2
9.
Copy of the vendor/component drawing for the ECCS and RHR pump room coolers.
10.
Information regarding any alarms which monitor on-line performance of the ECCS and RHR pump room coolers (such as high room temperatures) and associated response procedures.
11.
Copy of calculations which evaluate the potential for water hammer or excessive tube vibration in the the ECCS and RHR pump room coolers or associated service water piping.
12.
Copy of heat exchanger performance trending data tracked for the ECCS and RHR pump room coolers.
13.
Copy of the procedures which describes the methods taken to control water chemistry in the service water system, including any provisions for controlling biotic fouling.
14.
Copy of the calculation which establishes the design reservoir capacity of the ultimate heat sink.
15.
Copy of the last completed surveillance procedure which verifies the design reservoir capacity of the ultimate heat sink and which ensures that the ultimate heat sink and service water system are free from clogging due to macrofouling (silt, dead mussel shells, debris, etc.).
16.
Copy of the procedure and last test results which show that the overall functionality of the ultimate heat sink and service water system in relation to minimum wall thickness corrosion or erosion, especially in low flow areas.
17.
Copies of procedures which address ultimate heat sink functionality during adverse weather conditions, such as extreme cold or hot temperatures, or during incursion of seasonal aquatic material, such as lake grass or fish runs.
In addition to the requested material, we would appreciate it if you would arrange a tour of the service water system and an interview with the Generic Letter 89-13 program manager.
If the information requested above will not be available, please contact Patricia Lougheed as soon as possible at (630) 829-9760 or e-mail vpl@NRC.gov.