ML061920581
| ML061920581 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 07/05/2006 |
| From: | Ann Marie Stone Division of Reactor Safety III |
| To: | Crane C Exelon Generation Co |
| References | |
| Download: ML061920581 (3) | |
Text
July 5, 2006 Mr. Christopher M. Crane President and Chief Nuclear Officer Exelon Nuclear Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
LA SALLE COUNTY STATION - NOTIFICATION OF AN NRC BIENNIAL HEAT SINK PERFORMANCE INSPECTION AND INFORMATION REQUEST
Dear Mr. Crane:
On August 28, 2006, the NRC will begin the Biennial Heat Sink Performance Inspection at your LaSalle County Station. This inspection will be performed in accordance with NRC baseline inspection procedure (IP) 71111.07. The systems selected for detailed review during this baseline inspection are the high pressure coolant injection pump room cooler, the reactor core isolation cooling pump room cooler and the unit 1 core spray pump motor cooler.
We have enclosed a request for documents needed for the inspection. This information can be sent to the following e-mail address cea4@nrc.gov, no later than August 21, 2006, so that we may start the review of these documents. A hard-copy with the required information is also an acceptable option.
The lead inspector for this inspection is Ms. Caroline Acosta Acevedo. If there are questions about the material requested, or the inspection, please call Ms. Acosta Acevedo at (630) 829-9718.
In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter, its enclosure, and your response (if any), will be available electronically for public inspection in License Nos. NPF-11; NPF-18
C. Crane 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. 50-373; 50-374 License Nos. NPF-11; NPF-18
Enclosure:
BIENNIAL HEAT SINK INSPECTION DOCUMENT REQUEST cc w/encl:
Site Vice President - LaSalle County Station LaSalle County Station Plant Manager Regulatory Assurance Manager - LaSalle County Station Chief Operating Officer Senior Vice President - Nuclear Services Senior Vice President - Mid-West Regional Operating Group Vice President - Mid-West Operations Support Vice President - Licensing and Regulatory Affairs Director Licensing - Mid-West Regional Operating Group Manager Licensing - Clinton and LaSalle Senior Counsel, Nuclear, Mid-West Regional Operating Group Document Control Desk - Licensing Assistant Attorney General Illinois Emergency Management Agency State Liaison Officer Chairman, Illinois Commerce Commission
C. Crane 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, Ann Marie Stone, Chief Engineering Branch 2 Division of Reactor Safety Docket Nos. 50-373; 50-374
Enclosure:
BIENNIAL HEAT SINK INSPECTION DOCUMENT REQUEST cc w/encl:
Site Vice President - LaSalle County Station LaSalle County Station Plant Manager Regulatory Assurance Manager - LaSalle County Station Chief Operating Officer Senior Vice President - Nuclear Services Senior Vice President - Mid-West Regional Operating Group Vice President - Mid-West Operations Support Vice President - Licensing and Regulatory Affairs Director Licensing - Mid-West Regional Operating Group Manager Licensing - Clinton and LaSalle Senior Counsel, Nuclear, Mid-West Regional Operating Group Document Control Desk - Licensing Assistant Attorney General Illinois Emergency Management Agency State Liaison Officer Chairman, Illinois Commerce Commission ADAMS Distribution:
DXC1 DMS6 RidsNrrDirsIrib GEG KGO DEK CAA1 DRPIII DRSIII PLB1 JRK1 ROPreports@nrc.gov DOCUMENT NAME: ML061920581.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 CAcostaAcevedo: ls BBurgess AMStone DATE 07/05/06 07/05/06 07/05/06 OFFICIAL RECORD COPY
Enclosure 1
BIENNIAL HEAT SINK INSPECTION DOCUMENT REQUEST Inspection Date:
August 28, 2006 Inspection Procedures:
Heat Sink Performance Inspector:
Caroline Acosta Acevedo, Reactor Engineer (630) 829-9718 CEA4@nrc.gov Initial Document Request The systems selected for detailed review during this baseline inspection are the high pressure coolant injection pump room cooler, the reactor core isolation cooling pump room cooler, and the unit 1 core spray pump motor cooler.
1.
Copy of the two most recently completed tests confirming thermal performance of each HX. Include 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 HX.
3.
Copy of the calculation which establishes the limiting (maximum) design basis heat load which is required to be removed by each of these HXs.
4.
Copy of the calculation which correlates surveillance testing results from these HXs with design basis heat removal capability (e.g., basis for surveillance test acceptance criteria).
5.
The clean and inspection maintenance schedule for each HX, including justifications for the schedule if it has been increased since the Generic Letter (GL) 89-13 program was implemented.
6.
For the last two clean and inspection activities completed on each HX, provide a copy of the document describing the inspection results.
7.
Provide a 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 HX.
8.
Copies of the procedures used to monitor or inspect heat exchanger performance.
9.
Copy of the design specification and heat exchanger data sheets for each HX.
Enclosure 2
10.
Copy of the vendor/component drawing for each HX.
11.
Provide a list of issues with a summary of your corrective action system associated with these HXs in the past three years.
12.
Provide a list of calculations with a description which currently apply to each HX.
13.
Provide HX performance trending data tracked for each HX.
14.
Provide the Design Basis Documents for the above listed HXs.
15.
System health report(s) and maintenance rule system notebooks for these HX(s).
16.
Copies of procedures developed to implement the recommendations of GL 89-13, Service Water System Problems Affecting Safety-Related Equipment.
17.
List of operability evaluations currently relied upon and those that were previously (past two years) relied upon for operability.
18.
List of engineering-related Operator Workarounds/Temporary Modifications for these HX(s).
19.
Copy of HX self-assessments and audits for HX(s).
20.
Updated Final Safety Analysis Report pages for these HX(s) 21.
Information regarding any alarms which monitor on-line performance of these HXs.
22.
Copy of calculations which evaluate the potential for water hammer or excessive tube vibration in these HXs.
23.
Copy of the procedures which describe the methods taken to control water chemistry in the service water systems, including any provisions for controlling biotic fouling.
24.
Copy of the last completed surveillance procedure which verifies that the service water systems are free from clogging due to macrofouling (i.e., silt, dead mussel shells, debris, etc.).
25.
Copy of the procedure and last test results which show that the overall functionality of service water systems in relation to minimum wall thickness corrosion or erosion, especially in low flow areas.
26.
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.
27.
List of the GL 89-13 heat exchangers in order of risk significance.