ML15082A099
| ML15082A099 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 03/20/2015 |
| From: | Christine Lipa NRC/RGN-III/DRS/EB2 |
| To: | Gardner P Northern States Power Co |
| References | |
| IR 2015007 | |
| Download: ML15082A099 (8) | |
See also: IR 05000263/2015007
Text
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION III
2443 WARRENVILLE RD. SUITE 210
LISLE, IL 60532-4352
March 20, 2015
Mr. Peter A. Gardner
Site Vice President
Monticello Nuclear Generating Plant
Northern States Power Company, Minnesota
2807 West County Road 75
Monticello, MN 55362-9637
SUBJECT: MONTICELLO NUCLEAR GENERATING PLANT - REQUEST FOR
INFORMATION FOR AN NRC TRIENNIAL BASELINE COMPONENT DESIGN
BASES INSPECTION (CDBI) INSPECTION REPORT 05000263/2015007
Dear Mr. Gardner:
On June 22, 2015, the U. S. Nuclear Regulatory Commission (NRC) will begin a Triennial
Baseline Component Design Bases Inspection (CDBI) at Monticello Nuclear Generating Plant.
A team of six inspectors will perform this 3-week inspection. This inspection will be performed
in accordance with NRC Baseline Inspection Procedure (IP) 71111.21.
The CDBI focuses on the design, maintenance, and operation of risk-significant components
associated with one or more accident scenario or systems. The components to be reviewed
during this baseline inspection will be identified during the in-office preparation week that occurs
prior to the first onsite inspection week. In addition, operating experience issues, associated
with the component samples, will also be selected for review. The inspection team may request
scenarios to be performed on the simulator. This request would require support from your
simulator staff to validate scenarios, simulator time, and a crew to perform the actions which
would most likely occur during the second on-site week. The team will work closely with your
staff early on during the inspection process to ensure this activity can be accomplished with
minimal impact.
The inspection will include 3-weeks onsite. The inspection team will consist of six NRC
inspectors, of which five will focus on engineering/maintenance and one on operations. The
current inspection schedule is as follows:
- Onsite weeks: June 22 - 26, 2015;
July 6 - 10, 2015; and
July 20 - 24, 2015.
The team will be preparing for the inspection, mainly during the week of June 15 - 19, 2015, as
discussed in the Enclosure.
P. Gardner -2-
Experience with previous baseline design inspections of similar depth and length has shown
that this type of inspection is extremely resource intensive, both for the NRC inspectors and the
licensee staff. In order to minimize the inspection impact on the site, and to ensure a productive
inspection for both parties, we have enclosed a request for information needed for the
inspection.
It is important that all of these documents are up-to-date and complete in order to minimize the
number of additional documents requested during the preparation and/or the onsite portions of
the inspection. Insofar as possible, this information should be provided electronically to the lead
inspector. The information request has been divided into three groups:
- The first group lists information necessary for our initial inspection scoping activities.
This information should be provided to the lead inspector no later than April 29, 2015.
By May 22, 2015, the lead inspector will communicate the initial selected set of
approximately 15 components.
- The second group of documents requested are those items needed to support our
in-office preparation activities. This set of documents, including the calculations
associated with the initial selected components, should be provided to the lead inspector
at the Regional Office no later than June 11, 2015. During the in-office preparation
activities, the team 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 to the team onsite on
June 22, 2015. It is also requested that corrective action documents and/or questions
developed during the inspection be provided to the lead inspector as the documents are
generated.
The lead inspector for this inspection is Andrew Dunlop. We understand that our licensing
contact for this inspection is Carrie Fosaaen of your organization. If there are any questions
about the inspection or the material requested in the enclosure, please contact the lead
inspector at (630) 829-9726, or via e-mail at Andrew.Dunlop@nrc.gov.
This letter does not contain new or amended information collection requirements subject
to the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information
collection requirements were approved by the Office of Management and Budget, Control
Number 3150-0011. The NRC may not conduct or sponsor, and a person is not required to
respond to, a request for information or an information collection requirement unless the
requesting document displays a currently valid Office of Management and Budget Control
Number.
P. Gardner -3-
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 Systems (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/
Christine A. Lipa, Chief
Engineering Branch 2
Division of Reactor Safety
Docket No. 50-263
License No. DPR-22
Enclosure:
Information Request for Component Design
Bases Inspection (CDBI)
cc w/encl: Distribution via LISTSERV
INFORMATION REQUEST FOR COMPONENT DESIGN BASES INSPECTION (CDBI)
Inspection Report: 05000263/2015007
Inspection Dates: June 22 - 26, 2015;
July 6 - 10, 2015; and
July 20 - 24, 2015.
Inspection Procedure: IP 71111.21, Component Design Bases Inspection
Lead Inspector: Andrew Dunlop, Senior Reactor Engineer, DRS
(630) 829-9726
Andrew.Dunlop@nrc.gov
I. Information Requested Prior to the Onsite Information Gathering/Inspection Week
The following information is requested by April 29, 2015, or sooner, to facilitate
inspection preparation. If you have any questions regarding this information, please call
the team leader as soon as possible. (Please provide the information electronically in
pdf files, Excel, or other searchable formats, preferably on some portable electronic
media [e.g., CDROM, DVD, flash drive, etc.]. The portable electronic media should
contain descriptive names, and be indexed and hyperlinked to facilitate ease of use.
Information in lists should contain enough information to be easily understood by
someone who has knowledge of light water reactor technology)
1. Risk-ranking of top 250 components from your site-specific probabilistic safety
analysis (PSA) sorted by Risk-Achievement Worth (RAW). Include values for
Birnbaum Importance, Risk-Reduction Worth (RRW), and Fussell-Veseley (FV)
(as applicable).
2. Risk-ranking of top 100 containment-related components (i.e., Large Early
Release Frequency [LERF]) from your site specific PSA sorted by RAW.
3. Provide a list of the top 200 cut-sets from your PSA.
4. Provide a list of the top 100 cut-sets for each initiator modeled in the PSA that
contributes more than 5 percent to the Baseline Plant Core Damage
Frequency (CDF).
5. Copies of PSA system notebooks and latest PSA summary document.
6. List of time critical operator actions. Identify those actions that do not have Job
Performance Measures (JPMs).
7. Provide copies of the Emergency Operating Procedures (EOPs).
Enclosure
INFORMATION REQUEST FOR COMPONENT DESIGN BASES INSPECTION (CDBI)
8. If you have an External Events or Fire PSA Model, provide the information
requested in Items 1 and 2 for external events and fire. Provide narrative
description of each coded event (including fire and flood zone description).
9. Electronic copy of the site Individual Plant Examination of External Events, if
available.
10. Any pre-existing evaluation or list of components and associated calculations
with low design margins (i.e., pumps closest to the design limit for flow or
pressure, diesel generator close to design required output, heat exchangers
close to rated design heat removal etc.).
11. List of available design (setup) margins in both the open and closed direction
(identify safety-related direction) for valves in the Motor-Operated Valve (MOV)
and Air-Operated Valve (AOV) programs. Identify the basis for how the margin
was determined.
12. List of high-risk Maintenance Rule Systems/Components based on engineering
or expert panel judgment (i.e., those systems/components not identified in the
PRA).
13. Structures, Systems, and Components (SSCs) in the Maintenance Rule (a)(1)
category for the last 3 years.
14. Site top 10 issues list (if applicable).
15. A list of operating experience evaluations for the last 3 years.
16. Information of any common cause failure of components experienced in the last
5 years at your facility.
17. List of Root Cause Evaluations associated with component failures or design
issues initiated/completed in the last 5 years.
18. List of open operability evaluations.
19. List of components/systems considered operable but degraded/nonconforming.
20. Current management and engineering organizational chart.
21. Electronic copies of Updated Final Safety Analysis Report, Technical
Specifications, Technical Specifications Bases, and Technical Requirements
Manual.
22. Major one line electrical drawings (ac and dc) and key diagrams (paper copies).
23. Electronic copy of Piping and Instrumentation Drawings (P&IDs) (if available).
2
INFORMATION REQUEST FOR COMPONENT DESIGN BASES INSPECTION (CDBI)
II. Information Requested (for the approximate 15 selected components) to be
Available by June 11, 2015 (will be reviewed by the team in the Regional office
during the week of June 15, 2015).
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.).
1. List of condition reports (corrective action documents) associated with each of
the selected components for the last 6 years.
2. The maintenance history (corrective, preventive, and elective) associated with
each of the selected components for the last 10 years. Identify frequency of
preventive maintenance activities.
3. Copies of calculations associated with each of the selected components (if not
previously provided), excluding data files. Please review the calculations and
also provide copies of important referenced material (such as drawings,
engineering requests, and vendor letters). (Pipe stress calculations are excluded
from this request)
4. System Health Reports, System Descriptions, Design Basis Documents, and/or
Training Lesson Plans associated with each of the selected components.
5. A list of modifications, including equivalency evaluations and setpoint changes,
associated with each of the selected components. This list should include a
descriptive paragraph on the purpose of the modification. Please ensure this list
only includes design completed (not canceled) modifications.
6. Copies of operability evaluations (open/closed for last 3 years) associated with
each of the selected components, and plans for restoring operability, if
applicable.
7. Copies of selected operator work-around evaluations associated with each of the
selected components and plans for resolution, if applicable.
8. Copies of any open temporary modifications associated with each of the selected
components, if applicable.
9. Trend data on the selected electrical/mechanical components performance for
last 3 years (e.g., pumps performance including inservice testing, other vibration
monitoring, oil sample results, etc., for valves: stroke time and leak rate results,
etc.).
10. Provide copies of the normal and abnormal operating procedures associated with
the selected components and selected scenarios.
11. A copy of any internal/external self-assessments, and associated corrective
action documents generated in preparation for the inspection.
3
INFORMATION REQUEST FOR COMPONENT DESIGN BASES INSPECTION (CDBI)
12. Copy of latest completed tests and surveillances for each component, for
example:
- Pumps: comprehensive test, quarterly test, flow balance, etc.
- Valves: stroke time testing, diagnostic testing, leak testing, interlocks,
etc., and
- Heat Exchangers/Room Coolers: thermal performance, clean/inspect,
fan flows, etc.
Acceptance criteria basis calculations should also be included.
III. Additional Information to be Provided on June 22, 2015 Onsite (for final selected
components)
1. During the in-office preparation activities, the team will be making final selections
and may identify additional information needed to support the inspection. The
lead inspector will provide a list of the additional information needed during the
week of June 15 - 19, 2015.
2. Schedule of any testing/maintenance activities to be conducted on the selected
components during the 3 onsite inspection weeks.
IV. Information Requested to be Provided Throughout the Inspection
1. Copies of any corrective action documents generated as a result of the teams
questions or queries during this inspection.
2. Copies of the list of questions submitted by the team members and the
status/resolution of the information requested (provide daily during the inspection
to each team member).
3. One complete set of P&IDs (paper copies).
4. Reference materials. (make available, if needed, during all on-site weeks):
- Individual Plant Examination/Probabilistic Risk Assessment report;
- Procurement documents for components selected (verify retrievable);
- Plant procedures (normal, abnormal, emergency, surveillance, etc.); and
- Vendor manuals.
If you have questions regarding the information requested, please contact the lead inspector.
4
P. Gardner -3-
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 Systems (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/
Christine A. Lipa, Chief
Engineering Branch 2
Division of Reactor Safety
Docket No. 50-263
License No. DPR-22
Enclosure:
Information Request for Component Design
Bases Inspection (CDBI)
cc w/encl: Distribution via LISTSERV
DISTRIBUTION w/encl:
Kimyata MorganButler
RidsNrrDorlLpl3-1 Resource
RidsNrrPMMonticello
RidsNrrDirsIrib Resource
Cynthia Pederson
DRPIII
DRSIII
ADAMS Accession Number ML15082A099
Publicly Available Non-Publicly Available Sensitive 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:cl CLipa
DATE 03/20/15 03/20/15
OFFICIAL RECORD COPY