ML080870526
| ML080870526 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 03/26/2008 |
| From: | Ann Marie Stone NRC/RGN-II/DRS/EB2 |
| To: | Pardee C Exelon Generation Co |
| References | |
| IR-08-004 | |
| Download: ML080870526 (8) | |
See also: IR 05000461/2008004
Text
March 26, 2008
Mr. Charles G. Pardee
Chief Nuclear Officer and
Senior Vice President
Exelon Generation Company, LLC
4300 Winfield Road
Warrenville IL 60555
SUBJECT: CLINTON POWER STATION
NOTIFICATION OF AN NRC BIENNIAL HEAT SINK PERFORMANCE
INSPECTION AND REQUEST FOR INFORMATION 05000461/2008004
Dear Mr. Pardee:
On July 14, 2008, the NRC will begin the on-site portion of the Biennial Heat Sink Performance
Inspection at your Clinton Power Station. This inspection will be performed in accordance with
NRC Baseline Inspection Procedure (IP) 71111.07.
In order to minimize the impact that the inspection has on the site and to ensure a productive
inspection, we have enclosed a request for documents needed for the inspection. The
documents have been divided into three groups.
- The first group lists information necessary for our initial inspection scoping activities.
This information should be available to the lead inspector no later than June 2, 2008.
By June 13, 2008, the inspector will communicate the initial selected set of approximately
2-3 risk significant heat exchangers.
- The second group of documents requested is those items needed to support our in-office
preparation activities. This set of documents, including the calculations associated with
the selected heat exchangers, should be available at the Regional Office no later than
July 7, 2008. This information should be separated for each selected component,
especially if provided electronically (e.g., folder with component name that includes
calculations, condition reports, maintenance history, etc.). During the in-office preparation
activities, the inspector may identify additional information needed to support the
inspection.
- The last group includes the additional information above as well as plant specific reference
material. This information should be available on-site to the inspector on July 14, 2008. It
is also requested that corrective action documents and/or questions developed during the
inspection be provided to the inspector as the documents are generated.
Please send the information to the following e-mail address caroline.acosta@nrc.gov. A
hard copy with the required information is also an acceptable option. It is important that these
documents are complete as possible, in order to minimize the number of documents requested
during the preparation week or during the on-site inspection.
C. Pardee -2-
All requested documents are to be for the time period from the on-site inspection period back to
the last Heat Sink Performance Inspection. If nothing addressing a request was done in that
time period, then the request applies to the last applicable document in the previous time period.
The lead inspector for this inspection is Caroline Enid 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 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. 50-461
License Nos. NPF-62
Enclosure: BIENNIAL HEAT SINK INSPECTION
DOCUMENT REQUEST
cc w/encl: Site Vice President - Clinton Power Station
Plant Manager - Clinton Power Station
Regulatory Assurance Manager - Clinton Power Station
Chief Operating Officer and Senior Vice President
Senior Vice President - Midwest Operations
Senior Vice President - Operations Support
Vice President - Licensing and Regulatory Affairs
Director - Licensing and Regulatory Affairs
Manager Licensing - Clinton, Dresden and Quad Cities
Associate General Counsel
Document Control Desk - Licensing
Assistant Attorney General
J. Klinger, State Liaison Officer
Illinois Emergency Management Agency
Chairman, Illinois Commerce Commission
Illinois Emergency Management Agency
C. Pardee -2-
All requested documents are to be for the time period from the on-site inspection period back to the last
Heat Sink Performance Inspection. If nothing addressing a request was done in that time period, then the
request applies to the last applicable document in the previous time period.
The lead inspector for this inspection is Caroline Enid 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 NRCs 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 NRCs 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. 50-461
License Nos. NPF-62
Enclosure: BIENNIAL HEAT SINK INSPECTION
DOCUMENT REQUEST
cc w/encl: Site Vice President - Clinton Power Station
Plant Manager - Clinton Power Station
Regulatory Assurance Manager - Clinton Power Station
Chief Operating Officer and Senior Vice President
Senior Vice President - Midwest Operations
Senior Vice President - Operations Support
Vice President - Licensing and Regulatory Affairs
Director - Licensing and Regulatory Affairs
Manager Licensing - Clinton, Dresden and Quad Cities
Associate General Counsel
Document Control Desk - Licensing
Assistant Attorney General
J. Klinger, State Liaison Officer
Illinois Emergency Management Agency
Chairman, Illinois Commerce Commission
Illinois Emergency Management Agency
DOCUMENT NAME: G:\DRS\Work in Progress\Ltr. 03__08 Clinton RFI CEA.doc
9 Publicly Available 9 Non-Publicly Available 9 Sensitive 9 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
NAME CAcosta: ls AMStone
DATE 03/21/08 03/26/08
OFFICIAL RECORD COPY
Letter to Mr. Charles G. Pardee from Ms. Ann Marie Stone dated March 26, 2008.
SUBJECT: CLINTON POWER STATION
NOTIFICATION OF AN NRC BIENNIAL HEAT SINK PERFORMANCE
INSPECTION AND REQUEST FOR INFORMATION 05000461/2008004
DISTRIBUTION:
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BIENNIAL HEAT SINK INSPECTION
DOCUMENT REQUEST
Inspection Report: 05000461/2008004
Inspection Dates: July 14, 2008 - July 18, 2008
Inspection Procedure: IP 71111.07, Biennial Heat Sink Performance Inspection
Lead Inspector: Caroline Enid Acosta Acevedo
(630) 829-9718
caroline.acosta@nrc.gov
I. Information Requested By June 2, 2008
1. List of the Generic Letter (GL) 89-13, Service Water System Problems Affecting
Safety-Related Equipment, heat exchangers in order of risk significance.
2. Copy of heat exchanger performance trending data tracked for each GL 89-13 heat
exchanger.
3. List of corrective action program documents (with a short description) associated
with GL 89-13 heat exchangers, heat sinks, silting, corrosion, fouling, or heat
exchanger testing, for the previous two years or since the last biennial heat sink
inspection.
4. Copy of any self-assessment done on any of GL 89-13 heat exchangers.
5. System health report(s) and maintenance rule system notebooks for all the GL 89-13
heat exchangers.
II. Information Requested By July 7, 2008
1. For the specific heat exchangers selected:
a. Copies of the two most recent completed tests confirming thermal performance
for those heat exchangers which are performance tested;
b. Copy of system description and design basis document for the heat
exchangers (as applicable);
1 Enclosure
BIENNIAL HEAT SINK PERFORMANCE INSPECTION
DOCUMENT REQUEST
c. 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;
d. Copy of the Updated Final Safety Analysis Report (UFSAR) sections applicable
for each heat exchanger; and
e. Provide a list of calculations with a description which currently apply to each
heat exchanger.
2. 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.
3. Copies of procedures developed to implement the recommendations of GL 89-13,
e.g., the GL 89-13 Heat Exchanger Program description.
4. Updated Final Safety Analysis Report pages for the GL 89-13 Heat Exchanger
Program.
5. Maximum Cooling Water system inlet temperature limit that still allows full licensed
power operation of the nuclear reactor. Please provide the document that states
this limit (e.g., USAR or TRM) and the operating procedure that ensures this limit is
not exceeded.
III. Information Requested to be Available on First Day of Inspection, July 14, 2008
1. For the specific heat exchangers selected:
a. Provide the Design Basis Documents and Updated Final Safety Analysis
Report pages for the selected heat exchangers;
b. Copy of the design specification and heat exchanger data sheets for each heat
exchanger;
c. Copy of the vendor manuals including component drawings for each heat
exchanger;
d. 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;
e. 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);
f. Copy of the calculations or documents which evaluate the potential for water
hammer or excessive tube vibration in the heat exchanger or associated piping;
2 Enclosure
BIENNIAL HEAT SINK PERFORMANCE INSPECTION
DOCUMENT REQUEST
g. List of engineering-related Operator Workarounds/Temporary Modifications for
these heat exchangers since the last Heat Sink Performance;
h. Copy of the evaluations of data for the two most recent completed tests
confirming the thermal performance of each heat exchanger;
i. Documentation and procedures that identify the types, accuracy, and location
of any special instrumentation used for the two most recently completed
thermal performance tests for the heat exchangers (e.g., high accuracy
ultrasonic flow instruments or temperature instruments). Include calibration
records for the instruments used during these tests;
j. Copies of those documents that describe the methods taken to control water
chemistry in the heat exchangers;
k. 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;
l. The cleaning and inspection maintenance schedule for each heat exchanger
for the next five years;
m. Copy of the document describing the inspection results for the last two clean
and inspection activities completed on each heat exchanger;
n. 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;
o. Copy of the document establishing the repair criteria (plugging limit) for
degraded tubes which are identified in each heat exchanger; and
p. Information regarding any alarms which monitor on-line performance.
2. For the ultimate heat sink:
a. Maintenance or inspection of inaccessible below-water portions of the UHS
system including results of underwater diving inspections and assessments of
sediment intrusion and/or removal of sediment.
3 Enclosure
BIENNIAL HEAT SINK PERFORMANCE INSPECTION
DOCUMENT REQUEST
b. Inspections and/or maintenance related to preventing macrofouling (silt, dead
mussel shells, debris, etc.) and aquatic life such as fish, algae, grass or kelp;
c.. Inspections and/or maintenance related to preventing biotic fouling;
d.. Copies of chemistry procedures and surveillances that monitor for pH, calcium
hardness, etc.;
e. Copies of any design change performed on the system;
f. Copies of procedures for a loss of UHS; and
g. Copies of procedures associated with operating during adverse weather
conditions, e.g., icing or high temperatures or low levels.
(1.) Copies of calculations and surveillances that determine the UHS reservoir
capacity and heat transfer capability.
(2). Copies of surveillance procedures and testing results conducted on the level
instrumentation relied upon to determine UHS reservoir capability.
3. For the safety-related service water system (or equivalent) provide the following:
a. Last two performance tests, such as the ASME inservice test, for all pumps, all
valves and the cooling towers, if applicable, in the safety-related service water
system. If the components are not performance tested, please provide
documentation verifying performance by the methods actually used;
b. Copies of the documents that verify flow testing performed at maximum design
flow during the last two years or since the last time it was done; and
c. Copies of the documents that verify maximum design flow testing will continue to
be performed periodically in the future such as:
(1). Copies of any design changes performed on the system.
(2). Copies of procedures for a loss of service water system.
(3). Copies of inspections and/or maintenance related to macrofouling (silt, dead
mussel shells, debris, etc.) and aquatic life such as fish, algae, grass or kelp.
(4). Copies of inspections and/or maintenance related to preventing biotic
fouling.
4 Enclosure
BIENNIAL HEAT SINK PERFORMANCE INSPECTION
DOCUMENT REQUEST
(5). Copies of chemistry procedures and surveillances that monitor for pH, calcium
hardness, etc..
(6). 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 non-
safety related section.
(7). Copies of the pipe testing and/or inspection program procedures and
surveillances.
(8). 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.
(9). History of any thru wall pipe leak on the system
(10). Copies of the procedures to monitor assess and disposition active thru wall
pipe leaks, including structural evaluations and/or planned corrective actions.
If the information requested above will not be available, please contact Ms. Acosta Acevedo as
soon as possible at (630) 829-9718 or email caroline.acosta@nrc.gov.
5 Enclosure