ML081220208
| ML081220208 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 04/25/2008 |
| From: | Ann Marie Stone NRC/RGN-III/DRS/EB2 |
| To: | Pardee C Exelon Generation Co |
| References | |
| IR-08-004 | |
| Download: ML081220208 (10) | |
See also: IR 05000373/2008004
Text
April 25, 2008
Mr. Charles G. Pardee
Chief Nuclear Officer and
Senior Vice President
Exelon Generation Company, LLC
4300 Winfield Road
Warrenville IL 60555
SUBJECT: LA SALLE COUNTY STATION - NOTIFICATION OF AN NRC TRIENNIAL
HEAT SINK PERFORMANCE INSPECTION AND REQUEST FOR
INFORMATION 05000373/2008004; 05000374/2008004
Dear Mr. Pardee:
On July 21, 2008, the NRC will begin the onsite portion of the Triennial Heat Sink Performance
Inspection at your La Salle County Station. The inspection was originally scheduled to start
on July 14, 2008, but due to scheduling issues a revised date was selected and confirmed with
Mr. J. Vergara of your staff. 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 May 23, 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 onsite to the inspector on
July 21, 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.
C. Pardee -2-
Please send the information to the following e-mail address andrew.dunlop@nrc.gov. A
hard-copy with the required information is also an acceptable option.
It is important that these documents be as complete as possible, in order to minimize the
number of documents requested during the preparation week or during the onsite inspection.
All requested documents are to be for the time period from the onsite 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 Andrew Dunlop. If there are questions about the
material requested, or the inspection, please call Mr. Dunlop at (630) 829-9726.
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. 50-373; 50-374
Enclosure: Triennial Heat Sink Performance Inspection
w/Document Request
See Attached Distribution
Letter to Mr. Charles G. Pardee from Ms. Ann Marie Stone April 25, 2008.
SUBJECT: LA SALLE COUNTY STATION - NOTIFICATION OF AN NRC TRIENNIAL
HEAT SINK PERFORMANCE INSPECTION AND REQUEST FOR
INFORMATION 05000373/2008004; 05000374/2008004
cc w/encl: Site Vice President - LaSalle County Station
Plant Manager - LaSalle County Station
Regulatory Assurance Manager - LaSalle County 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 - Braidwood, Byron and LaSalle
Associate General Counsel
Document Control Desk - Licensing
Assistant Attorney General
J. Klinger, State Liaison Officer
Illinois Emergency Management Agency
Chairman, Illinois Commerce Commission
C. Pardee -2-
Please send the information to the following e-mail address andrew.dunlop@nrc.gov. A
hard-copy with the required information is also an acceptable option.
It is important that these documents be as complete as possible, in order to minimize the
number of documents requested during the preparation week or during the onsite inspection.
All requested documents are to be for the time period from the onsite 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 Andrew Dunlop. If there are questions about the
material requested, or the inspection, please call Mr. Dunlop at (630) 829-9726.
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,
Ann Marie Stone, Chief
Engineering Branch 2
Division of Reactor Safety
Docket Nos. 50-373; 50-374
Enclosure: Triennial Heat Sink Performance Inspection
w/Document Request
DISTRIBUTION
See next page
DOCUMENT NAME: G:\DRS\Work in Progress\Ltr. 03__08 La Salle HS 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 ADunlop: ls AMStone
DATE 04/24/08 04/25/08
OFFICIAL RECORD COPY
Letter to Mr. Charles G. Pardee from Ms. Ann Marie Stone April 25, 2008.
SUBJECT: LA SALLE COUNTY STATION - NOTIFICATION OF AN NRC TRIENNIAL HEAT SINK
PERFORMANCE INSPECTION AND REQUEST FOR INFORMATION
05000373/2008004; 05000374/2008004
cc w/encl: Site Vice President - LaSalle County Station
Plant Manager - LaSalle County Station
Regulatory Assurance Manager - LaSalle County 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 - Braidwood, Byron and LaSalle
Associate General Counsel
Document Control Desk - Licensing
Assistant Attorney General
J. Klinger, State Liaison Officer
Illinois Emergency Management Agency
Chairman, Illinois Commerce Commission
DISTRIBUTION:
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MAS
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DRPIII
DRSIII
PLB1
TXN
ROPreports@nrc.gov
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
Inspection Report: 05000373/2008004; 05000374/2008004
Inspection Dates: July 21, 2008 - July 25, 2008
Inspection Procedure: IP 71111.07, Heat Sink Performance
Lead Inspector: Andrew Dunlop
(630) 829-9726
andrew.dunlop@nrc.gov
I. Information Requested By May 23, 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 heat sink performance
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);
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;
1 Enclosure
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
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 onsite 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., UFSAR 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 21, 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;
g. List of engineering-related Operator Workarounds/Temporary Modifications for
these heat exchangers since the last Heat Sink Performance inspection;
2 Enclosure
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
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. For an above-ground UHS encapsulated by embankments, weirs or excavated
side slopes;
(1) The toe of the weir or embankment inspection procedures and results.
(2) The inspection, procedures and results of the rip rap protection placed on
excavated side.
(3) Dam inspections that monitor the integrity of the heat sink.
(4) 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
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
b. For all heat sinks:
(1) Inspections and/or maintenance related to preventing macrofouling
(silt, dead mussel shells, debris, etc.) and aquatic life, such as fish,
algae, grass or kelp.
(2) Inspections and/or maintenance related to preventing biotic fouling.
(3) Copies of chemistry procedures and surveillances that monitor for
pH, calcium hardness, etc.
(4) Copies of any design change performed on the system.
(5) Copies of procedures for a loss of UHS.
(6) Copies of procedures associated with operating during adverse
weather conditions, e.g., icing or high temperatures or low levels.
(7) Copies of calculations and surveillances that determine the UHS
reservoir capacity and heat transfer capability.
(8) 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):
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 was done at maximum
design flow during the last two years or since the last time it was done;
c. Copies of the documents that verify maximum design flow testing will
continue to be periodically done in the future;
d. Copies of any design changes performed on the system;
e. Copies of procedures for a loss of service water system;
f. 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 Enclosure
TRIENNIAL HEAT SINK PERFORMANCE INSPECTION DOCUMENT REQUEST
g. Copies of inspections and/or maintenance related to preventing biotic
fouling;
h. Copies of chemistry procedures and surveillances that monitor for pH,
calcium hardness, etc.;
i. 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;
j. Copies of the pipe testing and/or inspection program procedures and
surveillances;
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. History of any thru wall pipe leak on the system; and
m. 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 Mr. Andrew Dunlop as
soon as possible at (630) 829-9726 or email andrew.dunlop@nrc.gov.
5 Enclosure